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  • Polymer and Materials Science  (1,160)
  • Biochemistry and Biotechnology  (41)
  • Fluid Mechanics and Heat Transfer  (25)
  • LUNAR AND PLANETARY EXPLORATION
  • 1980-1984
  • 1970-1974
  • 1960-1964  (1,226)
  • 1945-1949
  • 1925-1929
  • 1960  (1,226)
Collection
Keywords
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Years
  • 1980-1984
  • 1970-1974
  • 1960-1964  (1,226)
  • 1945-1949
  • 1925-1929
Year
  • 1
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    Photographic Evidence of Streamwise Arrays of Vortices in Boundary-Layer Flow (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: Photographs are presented of various models coated with fluorescent oil to show evidence of surface vortices at a Mach number of 3.03. Vortex formation was evidently present on models with forward-facing steps, rearward-facing steps, wires, discrete surface particles, or unswept flat surfaces with sharp leading edges. Some photographs are also presented for the models coated with a sublimation material which clearly indicates the location of boundary-layer transition; however, it does not show the vortices as clearly as the fluorescent oil. The study was made on the models at an angle of attack of 0 deg at unit Reynolds numbers of 7.7 and 10.7 million per foot. The spacing of the vortices as indicated by the flow studies on the unswept model was smaller at the higher Reynolds number in accordance with Gortler's theory. The flow studies also indicated that stable surface vortices produced by either steps or surface roughness persisted over model areas known to have turbulent boundary layers.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-328
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  • 2
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    Effects of Sweep Angle on the Boundary-Layer Stability Characteristics of an Untapered Wing at Low Speeds (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: An investigation was conducted in the Ames 12-Foot Low-Turbulence Pressure Tunnel to determine the effects of sweep on the boundary-layer stability characteristics of an untapered variable-sweep wing having an NACA 64(2)A015 section normal to the leading edge. Pressure distribution and transition were measured on the wing at low speeds at sweep angles of 0, 10, 20, 30, 40, and 50 deg. and at angles of attack from -3 to 3 deg. The investigation also included flow-visualization studies on the surface at sweep angles from 0 to 50 deg. and total pressure surveys in the boundary layer at a sweep angle of 30 deg. for angles of attack from -12 to 0 deg. It was found that sweep caused premature transition on the wing under certain conditions. This effect resulted from the formation of vortices in the boundary layer when a critical combination of sweep angle, pressure gradient, and stream Reynolds number was attained. A useful parameter in indicating the combined effect of these flow variables on vortex formation and on beginning transition is the crossflow Reynolds number. The critical values of crossflow Reynolds number for vortex formation found in this investigation range from about 135 to 190 and are in good agreement with those reported in previous investigations. The values of crossflow Reynolds number for beginning transitions were found to be between 190 and 260. For each condition (i.e., development of vortices and initiation of transition at a given location) the lower values in the specified ranges were obtained with a light coating of flow-visualization material on the surface. A method is presented for the rapid computation of crossflow Reynolds number on any swept surface for which the pressure distribution is known. From calculations based on this method, it was found that the maximum values of crossflow Reynolds number are attained under conditions of a strong pressure gradient and at a sweep angle of about 50 deg. Due to the primary dependence on pressure gradient, effects of sweep in causing premature transition are generally first encountered on the lower surfaces of wings operating at positive angles of attack.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-338
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  • 3
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    An Experimental Investigation and Correlation of the Heat Reduction to Nonporous Surfaces Behind a Porous Leading Edge Through Which Coolant is Ejected (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-17
    Description: A configuration of a wing segment having constant chord thickness, 0 deg. sweep, a porous steel semicircular leading edge, and solid Inconel surfaces was tested in a Mach number 2.0 ethlyene-heated high-temperature air jet. Measurements were made of the wing surface temperatures at chordwise stations for several rates of helium flow through the porous leading edge. The investigation was conducted at stagnation temperatures ranging from 500 F to 2,400 F, at Reynolds numbers per foot ranging from 0.3 x 10(exp 7) to 1.2 x 10(exp 7), and at angles of attack of 0, +/- 5, and +/- 15 deg. The results indicated that the reduction of wing surface temperatures with respect to their values for no coolant flow, depended on the helium coolant flow rates and the distance behind the area of injection. The results were correlated in terms of the wall cooling parameter and the coolant flow-rate parameter, where the nondimensional flow rate was referenced to the cooled area up to the downstream position. For the same coolant flow rate, lower surface temperatures are achieved with a porous-wall cooling system. However, since flow-rate requirements decrease with increasing allowable surface temperatures, the higher allowable wall temperatures of the solid wall as compared to the structurally weaker porous wall- sharply reduce the flow-rate requirements of a downstream cooling system. Thus, for certain flight conditions it is possible to compensate for the lower efficiency of the downstream or solid-wall cooling system. For example, a downstream cooling system using solid walls that must be maintained at 1,800 F would require less coolant for Mach numbers up to 5.5 than would a porous-wall cooling system for which the walls must be maintained at temperatures less than or equal to 9000 F.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TM-X-235
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  • 4
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    Effect on Gaseous Film Cooling of Coolant Injection Through Angled Slots and Normal Holes (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: A study was made to determine the effect of coolant injection angularity on gaseous film-cooling effectiveness. In the correlation of experimental data an effective injection angle was defined by a vector summation of the coolant and mainstream gas flows. The cosine of this angle was used as a parameter to empirically develop a corrective term to qualify a correlating equation presented in Technical Note D-130 that was limited to tangential injection of the coolant. Data were also obtained for coolant injection through rows of holes normal to the test plate. The slot correlating equation was adapted to fit these data by the definition of an effective slot height. An additional corrective term was then determined to correlate these data.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-299 , E-689
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  • 5
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    Measurements of the Time-Averaged and Instantaneous Induced Velocities in the Wake of a Helicopter Rotor Hovering at High Tip Speeds (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: Measurements of the time-averaged induced velocities were obtained for rotor tip speeds as great as 1,100 feet per second (tip Mach number of 0.98) and measurements of the instantaneous induced velocities were obtained for rotor tip speeds as great as 900 feet per second. The results indicate that the small effects on the wake with increasing Mach number are primarily due to the changes in rotor-load distribution resulting from changes in Mach number rather than to compressibility effects on the wake itself. No effect of tip Mach number on the instantaneous velocities was observed. Under conditions for which the blade tip was operated at negative pitch angles, an erratic circulatory flow was observed.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-393 , L-836
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  • 6
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    Empirical Equation for Turbulent Forced-Convection Heat Transfer for Prandtl Numbers from 0.001 to 1000 (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: A review is made of some of the experimental data and analyses applicable to convective heat transfer in fully turbulent flow in smooth tubes with liquid metals and viscous Newtonian fluids. An empirical equation is evolved that closely approximates heat-transfer values obtained from selected analyses and experimental data for Prandtl numbers from 0.001 to 1000. The terms included in the equation are Reynolds number, Prandtl number, and an empirical diffusivity ratio between heat and momentum.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-483
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  • 7
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    NASA Research on the Hydrodynamics of the Gaseous Vortex Reactor (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: The experimental and analytical results to date of a study of a two-component gaseous vortex system are presented in this paper. Analytical expressions for tangential velocity and static-pressure profiles in a turbulent vortex show good agreement with experimental data. Airflow rates from 0.075 to 0.14 pound per second and corresponding tangential velocities from 160 to 440 feet per second are correlated by turbulent Reynolds numbers from 1.95 to 2.4. An analysis of an air-bromine gas mixture in a turbulent vortex indicates that a boundary value of bromine-to-air radial velocity ratio (u(2)/u(1)) of 0.999 gives essentially no bromine buildup, while a value of 0.833 results in considerable separation. For a constant value of (u(2)/u(1))(0) the bromine buildup increases as (1) the tangential velocity increases, (2) the air-to-bromine weight-flow ratio decreases, (3) the airflow rate decreases, (4) the temperature decreases, and (5) the turbulence decreases. Analytical temperature, pressure, and tangential-velocity profiles are also presented. Preliminary experimental results indicate that the flow of an air-bromine mixture through a vortex field results in a bromine density increase to a maximum value; followed by a decrease; the air density exhibits a uniform decrease from the outer vortex radius to the exhaust-nozzle radius.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-288 , E-800 , Nov 16, 1959 - Nov 21, 1959; Washington, DC; United States
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  • 8
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    Mixing Characteristics Downstream of Core Region of High-Temperature Axisymmetric Jets Exhausting Into Transonic and Supersonic Streams (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: A series of rocket motors with varying exit to throat area ratios was tested in the 8- by 6-foot wind tunnel to determine the effects of mixing on jet diameter and temperature decay at large distances (x/d 〉 30) from the nozzle exit. An approximate method to account for effects of the initial expansion was evolved. It was determined that the combustion efficiency has an important effect on jet spreading, since the unburned products can burn downstream of the nozzle. The data showed considerable scatter; however, mixing rates were, in general, lower than those observed for subsonic jets. Data for angles of attack of 5 and 10 deg are also presented, giving the respective centerline shift and temperature decay as a function of axial distance.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TM-X-151
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  • 9
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    An Experimental Study of the Ionization of Low-Density Gas Flows by Induced Discharges (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: Induced discharges are advantageous for ionizing low-density flows in that they introduce no electrode contamination into the flow and they provide a relatively high degree of ionization with good coupling of power into the gas. In this investigation a 40-megacycle oscillator was used to produce and maintain induced discharges in argon and mercury-vapor flows. Methods for preventing blowout of the discharge were determined, and power measurements were made with an in-line wattmeter. Some results with damped oscillations pulsed at 1,000 pulses per second are also presented.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-431 , L-986
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  • 10
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    An Experimental Investigation of Boundary-Layer Control for Drag Reduction of a Swept-Wing Section at Low Speed and High Reynolds Numbers (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: An investigation of laminar boundary-layer control by suction for purposes of drag reduction at low speed and high Reynolds numbers has been conducted in the Ames 12-Foot Pressure Wind Tunnel. The model was a 72.96-inch-chord wing panel, swept back 30 deg., which was installed between end plates to approximate a wing of infinite span. The airfoil section employed was a modified NACA 66-012 in the streamwise direction. Tests were limited to controlling the flow over only the upper surface of the model. Seventeen individually controllable suction chambers were provided below the surface to induce flow through 93 spanwise slots in the surface between the 0.0052- and 0.97-chord stations. Tests were made at angles of attack of 0 deg., +/- 1.0 deg., +/- 1.5 deg., and -2.0 deg. for Reynolds numbers from approximately 1.5 x 10(exp 6) to 4.0 x 10(exp 6) per foot. In general, essentially full-chord laminar flow was obtained for all conditions with small suction quantities. Minimum profile-drag coefficients of about 0.0005 to 0.0006 were obtained for the slotted surface at maximum values of the Reynolds number; these values include the Power required to induce suction as an equivalent drag.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-320
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  • 11
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    Real-Gas Correction Factors for Hypersonic Flow Parameters in Helium (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: The real-gas hypersonic flow parameters for helium have been calculated for stagnation temperatures from 0 F to 600 F and stagnation pressures up to 6,000 pounds per square inch absolute. The results of these calculations are presented in the form of simple correction factors which must be applied to the tabulated ideal-gas parameters. It has been shown that the deviations from the ideal-gas law which exist at high pressures may cause a corresponding significant error in the hypersonic flow parameters when calculated as an ideal gas. For example the ratio of the free-stream static to stagnation pressure as calculated from the thermodynamic properties of helium for a stagnation temperature of 80 F and pressure of 4,000 pounds per square inch absolute was found to be approximately 13 percent greater than that determined from the ideal-gas tabulation with a specific heat ratio of 5/3.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-462 , L-1135
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  • 12
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    Experimental Smoke and Electromagnetic Analog Study of Induced Flow Field About a Model Rotor in Steady Flight Within Ground Effect (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: Hovering and steady low-speed forward-flight tests were run on a 4-foot-diameter rotor at a ground height of 1 rotor radius. The two blades had a 2 to 1 taper ratio and were mounted in a see-saw hub. The solidity ratio was 0.05. Measurements were made of the rotor rpm, collective pitch, and forward-flight velocity. Smoke was introduced into the tip vortex and the resulting vortex pattern was photographed from two positions. Using the data obtained from these photographs, wire models of the tip vortex configurations were constructed and the distribution of the normal component of induced velocity at the blade feathering axis that is associated with these tip vortex configurations was experimentally determined at 450 increments in azimuth position from this electromagnetic analog. Three steady-state conditions were analyzed. The first was hovering flight; the second, a flight velocity just under the wake "tuck under" speed; and the third, a flight velocity just above this speed. These corresponded to advance ratios of 0, 0.022, and 0.030 (or ratios of forward velocity to calculated hovering induced velocity of approximately 0, 0.48, and 0.65), respectively, for the model test rotor. Cross sections of the wake at 450 intervals in azimuth angle as determined from the path of the tip vortex are presented graphically for all three cases. The nondimensional normal component of the induced velocity that is associated with the tip vortex as determined by an electromagnetic analog at 450 increments in azimuth position and at the blade feathering axis is presented graphically. It is shown that the mean value of this component of the induced velocity is appreciably less after tuck-under than before. It is concluded that this method yields results of engineering accuracy and is a very useful means of studying vortex fields.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-458 , W-143
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  • 13
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    Distribution of Time-Averaged Pressure Fluctuations Along the Boundary of a Round Subsonic Jet (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: A semiempirical analysis of the equation for incompressible fluctuations in a turbulent fluid, using similarity relations for round subsonic jets with uniform exit velocity, is used to predict the shape of the time-averaged fluctuation-pressure distribution along the mean-velocity boundary of jets. The predicted distribution is independent of distance downstream of the nozzle exit along the mixing region, inversely proportional to the distance downstream along the region of mean-velocity self-preservation, and proportional to the inverse square of the distance downstream along the fully developed region. Experimental results were in fair agreement with the theory. However, the measured fluctuation-pressure distributions were found to be very sensitive to changes in jet temperature and jet-nozzle profile, especially near the nozzle. These factors are not included in the theory. Increased jet temperatures produce increased pressure fluctuations and violation of similarity conditions. Nozzle-profile modifications may lead to violation of the uniform-exit-velocity requirement imposed in the theory.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-468 , E-780
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  • 14
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    The Blunt Plate In Hypersonic Flow (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: The sonic-wedge characteristics method has been used to obtain the shock shapes and surface pressure distributions on several blunt two-dimensional shapes in a hypersonic stream for several values of the ratio of specific heats. These shapes include the blunt slab at angle of attack and power profiles of the form yb = a)P, where 0 les than m less than 1, Yb and x are coordinates of the body surface, and a is a constant. These numerical results have been compared with the results of blast-wave theory, and methods of predicting the pressure distributions and shock shapes are proposed in each case. The effects of a free-stream conical-flow gradient on the pressure distribution on a blunt slab in hypersonic flow were investigated by the sonic-wedge characteristics method and were found to be sizable in many cases. Procedures which are satisfactory for reducing pressure data obtained in conical flows with small gradients are presented.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-408 , L-897
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  • 15
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    Investigation of the Flow Over Simple Bodies at Mach Numbers of the Order of 20 (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: It is shown that adequate means are available for calculating inviscid direct and induced pressures on simple axisymmetric bodies at zero angle of attack. The extent to which viscous effects can alter these predictions is indicated. It is also shown that inviscid induced pressures can significantly affect the stability of blunt, two-dimensional flat wings at low angles of attack. However, at high angles of attack, the inviscid induced pressure effects are negligible.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-449 , L-1051
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  • 16
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    Variation in Heat Transfer During Transient Heating of a Hemisphere at a Mach Number of 2 (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: Convective heat-transfer tests were made on a 5-inch-diameter hemisphere to determine the variation of Stanton number with the ratio of wall temperature to total temperature. The tests were made at a nominal Mach number of 2 for stagnation temperatures of 760 deg R, 1,030 deg R, and 1,380 deg R. The model was constructed so that radiation effects and also streamwise conduction effects within the model skin were minimized. The results of the tests verified that these effects were small. Tests which were made with different masses of air inside the model to check for conduction effects to the internal air cavity showed these effects to be negligible. For laminar flow on the hemisphere, the Stanton number remained essentially constant as the ratio of wall temperature to total temperature increased. However, for fully established turbulent flow, the Stanton number at some stations decreased on the order of 50 percent as the ratio of wall temperature to total temperature increased. A theory which agreed fairly well with the trend of this decrease is shown for comparison.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-399 , L-463
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  • 17
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    Experimental Investigation of Two Low-Drag Supercavitating Hydrofoils at Speeds up to 200 Feet per Second (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: An experimental investigation has been made in the Langley highspeed hydrodynamics facility to determine the force and moment characteristics of two hydrofoils (one having an aspect ratio of 1 and the other having an aspect ratio of 3) designed to have improved lift-drag ratios when operating under either supercavitating or ventilated conditions. Measurements were made of lift, drag, and pitching moment over a range of angles of attack from 40 to 200 for depths of submersion varying from 0 to approximately 1 chord. The range of speed for the investigation was from 110 to 200 feet per second. When the upper surface of the hydrofoils was completely unwetted, the experimental values of lift and drag forces were in good agreement with the theoretical values obtained from the zero-cavitation-number theory. The theoretical values for minimum angle of attack for operation with the upper surface of the hydrofoil unwetted define the lower limits of angle of attack for which the experimental values of lift coefficient are either in agreement with or slightly greater than those predicted by theory.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-436 , L-913
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  • 18
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    Preliminary Heat-Transfer Measurements on a Hypersonic Glide Configuration Having 79.5 degree Sweepback and 45 degree Dihedral at a Mach Number of 4.95 (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: An experimental investigation was conducted to evaluate the heat-transfer characteristics of a hypersonic glide configuration having 79.5 deg of sweepback (measured in the plane of the leading edges) and 45 of dihedral. The tests were conducted at a nominal Mach number of 4.95 and a stagnation temperature of 400 F. The test-section unit Reynolds number was varied from 1.95 x 10(exp 6) to 12.24 x 10(exp 6) per foot. The results indicated that the laminar-flow heat-transfer rate to the lower surface of the model decreased as the distance from the ridge line increased except for thermocouples located near the semispan at an angle of attack of 00 with respect to the plane of the leading edges. The heat-transfer distribution (local heating rate relative to the ridge-line heating rate) was similar to the theoretical heat-transfer distribution for a two-dimensional blunt body, if the ridge line was assumed to be the stagnation line, and could be predicted by this theory provided a modified Newtonian pressure distribution was used. Except in the vicinity of the apex, the ridge-line heat-transfer rate could also be predicted from two-dimensional blunt-body heat-transfer theory provided it was assumed that the stagnation-line heat-transfer rate varied as the cosine of the effective sweep (sine of the angle of attack of the ridge line). The heat-transfer level on the lower surface and the nondimensional heat-transfer distribution around the body on the lower surface were in qualitative agreement with the results of a geometric study of highly swept delta wings with large positive dihedrals made in reference 1.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TM-X-247
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  • 19
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    Flight Measurement of Wall-Pressure Fluctuations and Boundary-Layer Turbulence (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: The results are presented for a flight test program using a fighter type jet aircraft flying at pressure altitudes of 10,000, 20,000, and 30,000 feet at Mach numbers from 0.3 to 0.8. Specially designed apparatus was used to measure and record the output of microphones and hot-wire anemometers mounted on the forward-fuselage section and wing of the airplane. Mean-velocity profiles in the boundary layers were obtained from total-pressure measurements. The ratio of the root-mean-square fluctuating wall pressure to the free-stream dynamic pressure is presented as a function of Reynolds number and Mach number. The longitudinal component of the turbulent-velocity fluctuations was measured, and the turbulence-intensity profiles are presented for the wing and forward-fuselage section. In general, the results are in agreement with wind-tunnel measurements which have been-reported in the literature. For example, the variation the square root of p(sup 2)/q times the square root of p(sup 2) is the root mean square of the wall-pressure fluctuation, and q is the free-stream dynamic pressure) with Reynolds number was found to be essentially constant for the forward-fuselage-section boundary layer, while variations at the wing station were probably unduly affected by the microphone diameter (5/8 in.), which was large compared with the boundary-layer thickness.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-280
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  • 20
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    Radiation Shielding of the Stagnation Region by Transpiration of an Opaque Gas (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-15
    Description: The laminar compressible boundary layer in the two-dimensional and axisymmetric stagnation regions has been analyzed to show the effects of the injection of a radiation absorbing foreign gas on an incident radiation field, and on the enthalpy profiles across the boundary layer. Total heat transfer to the stagnation region is evaluated for numerous cases and the results are compared with the no shielding case. Required absorption properties of the foreign gas are determined and compared with properties of known gases.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-329
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  • 21
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    Spatial Characteristics of Water Spray Formed by Two Impinging Jets at Several Jet Velocities in Quiescent Air (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: The spatial characteristics of a spray formed by two impinging water jets in quiescent air were studied over a range of nominal jet velocities of 30 to 74 feet per second. The total included angle between the 0.089-inch jets was 90 deg. The jet velocity, spray velocity, disappearance of the ligaments just before drop formation, mass distribution, and size and position of the largest drops were measured in a circumferential survey around the point of jet impingement. Photographic techniques were used in the evaluations. The distance from the point of jet impingement to ligament breakup into drops was about 4 inches on the spray axis and about 1.3 inches in the radial position +/-90 deg from the axis. The distance tended to increase slightly with increase in jet velocity. The spray velocity varied from about 99 to about 72 percent of the jet velocity for a change in circumferential position from the spray axis to the +/-80 deg positions. The percentages tended to increase slightly with an increase in jet velocity. Fifty percent of the mass was distributed about the spray axis in an included angle of slightly less than 40 deg. The effect of jet velocity was small. The largest observed drops (2260-micron or 0.090-in. diam.) were found on and about the spray axis. The size of the largest drops decreased for an increase in radial angular position, being about 1860 microns (0.074 in.) at the +/-90 deg positions. The largest drop sizes tended to decrease for an increase in jet velocity, although the velocity effect was small. A drop-size distribution analysis indicated a mass mean drop size equal to 54 percent of an extrapolated maximum drop size.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-301 , E-419
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  • 22
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    Measurement of Screen-Size Effects on Intensity, Scale, and Spectrum of Turbulence in a Free Subsonic Jet (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: The results are reported of hot-wire anemometer measurements of the fluctuating longitudinal component of the turbulent velocities in the mean flow downstream of screens in an air jet. These measurements have been analyzed by well-established techniques to give the influence of tile screen mesh size on the turbulent intensity, scale, and the power-spectral-density. The results show a linear dependence of the intensity upon the screen mesh size for locations within the central core of the air jet. The spectral-density curves show that the screens redistribute the turbulent energy from the low frequencies (〈1000 cps) to the high frequencies (〉1000 cps). The effects of the screens are overwhelmed in the mixing region of the jet flow by the turbulence levels existing there. The large pressure drops occurring across the screens reduce the velocity of the jet as compared to the jet without screens by approximately one-third for the velocity and range of mesh sizes investigated and reported in this report. The turbulence scale is a linear function of distance from the nozzle exit and is somewhat greater than comparable jets without screens.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-297 , E-798
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    The Influence of Low Wall Temperature on Boundary-Layer Transition and Local Heat Transfer on 2-Inch-Diameter Hemispheres at a Mach Number of 4.95 and a Reynolds Number per Foot of 73.2 x 10(exp 6) (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: Measurements of the location of boundary-layer transition and the local heat transfer have been made on 2-inch-diameter hemispheres in the Langley gas dynamics laboratory at a Mach number of 4.95, a Reynolds number per foot of 73.2 x 10(exp 6), and a stagnation temperature of approximately 400 F. The transient-heating thin-skin calorimeter technique was used, and the initial values of the wall-to-stream stagnation- temperature ratios were 0.16 (cold-model tests) and 0.65 (hot-model test). During two of the four cold tests, the boundary-layer flow changed from turbulent to laminar over large regions of the hemisphere as the model heated. On the basis of a detailed consideration of the magnitude of roughness possibly present during these two cold tests, it appears that this destabilizing effect of low wall temperatures (cooling) was not caused by roughness as a dominant influence. This idea of a decrease in boundary-layer stability with cooling has been previously suggested. (See, for example, NASA Memorandum 10-8-58E.) For the laminar data obtained during the early part of the hot test, the correlation of the local-heating data with laminar theory was excellent.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-391 , L-752
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    NASA TECHNICAL REPORTS
  • 24
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    Turbulence Studies of a Rectangular Slotted Noise-Suppressor Nozzle (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: The problem of noise suppression of turbojet engines has shown a need for turbulence data within the flow field of various types of nozzles used in ad hoc investigations of the sound power. The result of turbulence studies in a nozzle configuration of four parallel rectangular slots is presented in this report with special attention to the effect of the spacing of the nozzles on the intensity of turbulence, scale of turbulence, spectrum of turbulence, and the mean stream velocity. Taylor's hypothesis, which describes the convection of the turbulence eddies, was tested and found correct within experimental error and certain experimental and theoretical limitations. The convection of the pressure patterns was also investigated, and the value of the convection velocity was found to be about 0.43 times the central core velocity of the jets. The effect of the spacing-to-width ratio of the nozzles upon the turbulence intensity, the scale of turbulence, and the spectral distribution of the noise was found in general to produce a maximum change for spacing-to-width ratios of 1.5 to 2.0. These changes may be the cause of the reduction in sound power reported for similar full-scale nozzles and test conditions under actual (static) engine operation. A noise reduction parameter is defined from Lighthill's theory which gives qualitative agreement with experiments which show the noise reduction is greatest for spacing-to-width ratios of 1.5 to 2.0.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-294 , E-384
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    NASA TECHNICAL REPORTS
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    Full-Scale Wind-Tunnel Tests of Blowing Boundary-Layer Control Applied to a Helicopter Rotor (1960)
    In:  CASI
    Details
    Publication Date: 2019-08-16
    Description: A full-scale wind-tunnel test was conducted of two boundary-layer-control applications to a 44-foot diameter helicopter rotor. Blowing from a nozzle near the leading edge of the blades delayed retreating blade stall. Results also indicated that delay of retreating blade stall could be obtained by cyclic blowing with a lower flow rate than that required for continuous blowing. It was found that blowing applied through a nozzle at mid-chord had no effect on retreating blade stall.
    Keywords: Fluid Mechanics and Heat Transfer
    Type: NASA-TN-D-335 , A-380
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  • 26
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    Umschau (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 137-140 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110215
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    Technische Wärmelehre. Von F. W. Winter. 2. verbesserte und erweiterte Auflage (Reihe: Fachbücher für Ingenieure), Verlag W. Girardet, 1959, 327 S., zahlreiche Abb., Halbleinen DM 24,80 (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 137-137 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110214
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    Personalnachricht (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 144-144 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110218
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    Eisenmetalle (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 176-179 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110309
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    Anodische und kathodische Polarisationserscheinungen bei der Inhibierung der Säurekorrosion des Eisens (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 156-162 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Anodic and cathodic polarisation phenomena with the inhibition of the acid corrosion of ironIt is shown that the inhibitors are primarily adsorbed or chemically fixed by the local anodes, and only later by the local cathodes. These phenomena are exclusively governed by the energy conditions on the metal surface, and not by the sign of the inhibitor particles. The adsorption takes place in two phases as it were. Good inhibitors show, apart from higher ohmic resistances, stronger anodic and cathodic polarisations. If the adsorption happens to take place, predominantly, at the local anode, the inhibiting effects and film resistances are lower. A high film resistance is always associated with a stronger cathodic polarisation. Poor inhibitors do not survive the first phase of adsorption to the local anodes. With good inhibitors, however, this phase is overcome very soon, and even with very low concentrations of approx. 0.01 gram per litre and over. The phenomena at the local anode are retarded by the blocking of the active centres whilst those at the local cathode are slowed down or arrested by a coherent layer of the inhibitor of higher ohmic resistance.
    Notes: Es wird gezeigt, daß die Inhibitoren primär an den Lokalanoden und dann erst an den Lokalkathoden adsorbiert oder chemisorbiert werden. Für diese Vorgänge sind nur die energetischen Verhältnisse an der Metalloberfläche, nicht aber der Ladungssinn der Inhibitionsteilchen maßgeblich. Die Adsorption geht gleichsam in zwei Stufen vor sich. Gute Inhibitoren zeigen neben höheren Ohmschen Widerstdänden auch stärkere anodische und kathodische Polarisationen. Erfolgt die Adsorption vorwiegend an der Lokalanode, dann treten nur niedrige Hemmungswirkungen und Filmwiderstände auf. Einem hohen Filmwiderstand entspricht stets auch eine stärkere kathodische Polarisation. Schlechte Inhibitoren kommen über das erste Stadium der Adsorption an den Lokalanoden nicht hinaus, bei guten wird dieses Stadium jedoch bald und bereits bei sehr niedrigen Konzentrationen von mehr als etwa 0,01 g/l überschritten. Die Vorgänge an der Lokalanode werden durch Blockierung der aktiven Zentren gehemmt, während jene an der Lokalkathode durch eine zusammenhängende Schicht des Inhibitors höheren Ohmschen Widerstandes verlangsamt oder zum Stillstand gebracht werden.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110306
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    Überzüge organischer Natur (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 192-197 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110315
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  • 32
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    Eisenmetalle (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 228-229 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110407
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    Metallische Überzüge (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 237-238 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110410
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    Wolfram und Molybdän. C. Agte und J. Vacek : 1959. 349 Seiten. 173 Abb. und 91 Tabb. Gebunden DM 38,-. Akademie-Verlag, Berlin (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 255-255 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110417
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    Sixth Report of the Corrosion Committee. Von J. C. Hudson. The Iron and Steel Institute, London SW 1. 1959. X, 217 Seiten mit zahlreichen Abbildungen und Tabellen. (Special Report No. 66) (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 256-256 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110424
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    ASTM Special Technical Publication No. 248. 1959, 90 Seiten, Preis $ 4.25, Mitglieder $ 3.40 „Report on Properties of Cast Iron at Elevated Temperatures“ Prepared for the Panel by J. R. Kattus and B. McPherson, Published by the American Society for Testing Materials, 1916. Philadelphia (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 257-257 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110426
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    Nachrichten (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 263-264 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110431
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    Masthead (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960) 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110501
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  • 39
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    Zunehmende Verwendung von Aluminium bei der Erdölraffination (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 265-269 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Aluminum use in refineries is increasingThe acceptance of aluminum in petroleum refinery construction is growing rapidly. Main reason for this development is the excellent resistance of aluminum to corrosion in situations frequently encountered in refinery practice. Other reasons for the metal's growing popularity are found in its low unit weight, low cost per unit volume and various secondary physical properties. A survey is provided of the corrosion behavior of aluminum in refinery processes and information is given on the composition and forms of aluminum alloys which are of primary importance in petroleum processing service. Comparative economics of aluminum and carbon steel are provided for some typical refinery applications and various successful areas for the use of aluminum-built process equipment are reported, from actual commercial practice.
    Notes: Der Verbrauch von Aluminium in Erdölraffinationsanlagen ist stark ansteigend. Einer der wichtigsten Gründe für diese Entwicklung ist die Korrosionsbeständigkeit des Aluminiums gerade unter den Bedingungen, die in der Praxis der Erdöraffination häufig auftreten. Als weitere Gründe für die zunehmende Verwendung sind das niedrige spezifische Gewicht, die niedrigen Kosten je Volumeneinheit und verschiendene physikalische Eigenschaften zu nennen. In einem Überblick werden die Korrosionseigenschaften des Aluminiums in Raffinationsprozessen beschrieben und die Zusammensetzungen und Formen derjenigen Aluminiumlegierungen angegeben, die für die Raffinationsprozesse am wichtigsten sind. Für einige typische Beispiele von Raffinationsanlagen sind die Kosten für die Ausführung in Stahl und in Aluminium zum Vergleich aufgestellt. Weiterhin wird unter dem Gesichtspunkt aktueller Geschäftspraxis von verschiedenen, erfolgreichen Anwendungsgebieten des Aluminiums im Bau von Raffinationisanlagen berichtet.
    Additional Material: 3 Ill.
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    URL: http://dx.doi.org/10.1002/maco.19600110504
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    Eisenmetalle (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 298-305 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110511
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    Organische Werkstoffe (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 318-322 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110514
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    Korrosionserscheinungen und deren Ursachen in Elektrolytkondensatoren (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 28-33 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion phenomena in electrolytic condensers, and their causesA breakdown and failure of an electrolytic condenser with aluminium electrodes is mainly attributable to corrosion phenomena. These are initiated by the presence of certain cations and anions which may already be present in the raw materials, or may have entered the condenser during the manufacturing process. Compared with aluminium corrosion under normal conditions, the corrosion effect is increased by the prevailing potentials. Moreover, the formation of the 'filter layer' formed by the dielectric in the electrolytic condenser is liable to be disturbed by the slightest impurities in the electrolyte. These phenomena can be avoided by using tantalum anodes and a solid electrolyte.
    Notes: Für den Ausfall und das Versagen eines Elektrolytkondensators mit Aluminiumelektroden sind vorwiegend Korrosionserscheinungen verantwortlich. Sie werden durch die Anwesenheit bestimmter Kationen und Anionen eingeleitet. Diese können bereits in den Ausgangsmaterialien vorhanden sein oder während des Fertigungsprozesses in den Kondensator gelangen. Die Wirkungen werden gegenüber des Angriffs des Aluminiums unter normalen Bedingungen durch die herrschenden Spannungsverhältnisse vergrößert. Ferner wird die Ausbildung der Ventilschicht, die das Dielektrikum im Elektrolytkondensator darstellt, durch geringste Elektrolytverunreinigungen gestört. Die beschriebene Erscheinungen lassen sich durch Anwendung von Tantalanoden und eines festen Elektrolyten umgehen.
    Additional Material: 13 Ill.
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    URL: http://dx.doi.org/10.1002/maco.19600110105
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    Nichtmetallische anorganische Werkstoffe (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 48-52 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110110
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    Metallische Überzüge (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 57-60 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110112
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    Metallische Überzüge (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 124-126 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110209
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    Grundlagen der Lagerschmierung. Von W. H. Kara. (Die Erdöl-Bücherei, B. 10, herausgegeben von E. A. Dreyer in Zusammenarbeit mit der Deutschen Shell Aktiengesellschaft Hamburg.) 140 S., 76 Abb. Verlagsanstalt Hüthig & Dreyer GmbH., Mainz und Heidelberg. Halbl. DM 12,80 (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 524-524 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110816
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    Nachrichten (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 527-528 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110823
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    Masthead (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960) 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110901
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    Fortschritte und Erfahrungen in der Anwendung korrosionsbeständiger Stähle (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 529-547 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Progress and experience in the use of corrosion-resistant steelsThis report surveys the different categories of corrosion-resistant steels, taking into account the development during recent years, and experience in application, especially in respect of corrosion properties.First, some cases of corrosion damage encountered on low-Carbon chromium steels with 13 and 17 pC Cr are described where, according to previous knowledge of the properties of these steels, such damage was hardly to be expected and is therefore deserving of special interest.This is followed by a brief survey of the technological properties and corrosion behaviour of high-temperature resistant and age-hardening steels which have played a particularly important part in recent developments. Particulars are given concerning the influence of sustained temperature stresses on the proneness of heat-resistant austentitic steels to intercrystalline corrosion and tension crack corrosion.As far as austenitic Cr-Mn-Ni steels are concerned, particular attention is paid to low-temperature properties and to sensitivity to tension crack corrosion. These steels, originally developed during the war, are again attracting interest.In conclusion, some data are given concerning the suitability of electrodes with high nickel contents for the welding of ferritic and austenitic steel.
    Notes: In diesem Bericht wird ein Überblick über die einzelnen Gruppen der korrosionsbeständigen Stähle gegeben unter Berücksichtigung der Entwicklung der letzten Jahre und der Erfahrungen in der Anwendung, besonders im Hinblick auf die Korrosionseigenschaften.Zunächst wird auf einige Korrosionsschäden an niedriggekohlten 13- und 17%igen Cr-Stählen eingegangen, die nach den bisherigen Kenntnissen der Eigenschaften dieser Stähle nicht ohne weiteres zu erwarten waren und daher Interesse verdienen.In Bezug auf hochwarmfeste und aushärtbare Stähle, die in den letzten Jahren im Brennpunkt der Entwicklung standen, werden nach einer kurzen Übersicht die technologischen Eigenschaften und das Korrosionsverhalten erörtert. Über den Einfluß der Dauertemperaturbeanspruchung auf die Anfälligkeit der warmfesten austenitischen Stähle zu interkristalliner Korrosion und Spannungsrißkorrosion werden Angaben gemacht.Über austenitische Cr-Mn-Ni-Stähle wird vor allem im Hinblick auf Tieftemperatureigenschaften und der Empfindlichkeit gegenüber Spannungsrißkorrosion berichtet; diese in den Kriegsjahren entwickelten Stähle finden neuerdings wieder Beachtung.Abschließend werden noch Angaben gemacht über die Eignung von hochnickelhaltigen Elektroden zum Verschweißen von ferritischem mit austenitischem Stahl.
    Additional Material: 28 Ill.
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    Organische Werkstoffe (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 571-574 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110910
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    Handbuch der technischen Elektrochemie. 3. Band: Die technische Elektrolyse im Schmelzfluß. 2. Auflage. Von G. Eger. Akademische Verlagsgesellschaft Geest & Portig K.-G., Leipzig. 1955. XV, 720 Seiten mit 224 Abbildungen. Brosch. DM 56, -  (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 256-256 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110423
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    Einführung in die Werkstoffkunde. Von F. Eisenkolb. Band III: Eisenwerkstoffe, VEB Verlag Technik Berlin 1959, 1. Auflage, 280 Seiten, 141 Abbildungen, 20 Tafeln (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 396-396 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110613
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    Personalnachrichten (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 399-400 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110618
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    Aus Industrie und Technik (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 461-463 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110723
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    Allgemeines, Theorie und Messung der Korrosion (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 488-488 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110806
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    Eine neue Nickellegierung unterbindet den Angriff heißer Schwefelsäuren (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 551-551 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: A new nickel alloy prevents corrosion by hot sulphuric acidsThe new alloy here described is the first material which has been found to be proof against corrosion by hot sulphuric acid within wide concentration ranges. The composition of this material, expressed in mean values, is a follows:Ni = 55%, Cr = 28%, Cu = 5,5%, Mn = 1,25%, Fe = 1,0% and C = 0,05%.Any variation in these percentage shares of the different alloy constituents will also affect the corrosion resistance of the alloy.The present report discusses the new alloys Illium G, Alloy 20 and Illium 98, their composition, and their resistance values which are tabulated.
    Notes: Die beschriebene neue Legierung ist das erste Material welches in weiten Konzentrationsbereichen gegen heiße Schwefelsäure beständig ist. Die Zusammensetzung dieses neuen Werkstoffes ist (Mittelwerte):Ni = 55%, Cr = 28%, Cu = 5,5%, Mn = 1,25%, Fe = 1,0% und C = 0,05%.Änderungen in diesen Anteilen der einzelnen Legierungskomponenten verändern auch gleichzeitig die Korrosionsbeständigkeit der Legierung.In dem Bericht werden die neuen Legierungen Illium G, Legierung 20 und Illium 98 besprochen, ihre Zusammensetzungen gegeben und die Beständigkeitswerte in einer Tabelle dargestellt.
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    Über die Ursachen und den Verlauf der Aggression bei Einwirkung angreifender Wässer auf Zementmörtel und Beton. II. Mitteilung (1. Teil) (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 1-17 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: On the causes and progress of aggression due to the attack of corrosive waters on cement mortar and concrete (Second Communication)This Second Communication contains a report about the comparative evaluation and interpretation of long-time tests with concrete made with Portland cement and blast furnace cement, and about analytical investigations after storage in corrosive media. These investigations have proved the decisive importance of the chemical and mineralogical composition of the Portland cement and of the setting and hardening processes in the mortar bed. In view of the agreement between the results obtained on the strength of different bases, the knowledge gained from these investigations can be regarded as a contribution, of general validity, to the clarification of the causes and processes of the aggression of corrosive waters on cement mortar and concrete. As a result, it is possible to draw certain fundamental conclusions which have a bearing on cement theory and concrete technology.
    Notes: In der II. Mitteilung wird über die vergleichende Auswertung und Deutung von Langzeitversuchen mit Beton aus Portlandzement und Hochofenzement und von analytischen Untersuchungen bei Einlagerung in aggressive Medien berichtet, durch die es gelungen ist, die entscheidende Bedeutung der chemischen und mineralogischen Zusammensetzung des Portlandzementes und der Hydrations- und Erhärtungsvorgänge im Mörtelbett nachzuweisen. Im Hinblick auf die Übereinstimmung der Untersuchungsergebnisse der verschiedenen Auswertungsunterlagen sind die Erkenntnisse, die dadurch gewonnen werden konnten, ein allgemeingültiger Beitrag zur Aufklärung der Ursachen und des Verlaufs der Aggression bei Einwirkung angreifender Wässer auf Zementmörtel und Beton, aus dem sich grundlegende zementtheoretische und betontechnologische Schlußfolgerungen ergeben.
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    Allgemeines, Theorie und Messung der Korrosion (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 40-42 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600110107
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    Nichteisenmetalle (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 46-48 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110109
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    Überzüge organischer Natur (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 65-68 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110114
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    Die FerroxylprobeDieser Bericht wurde auf der Sitzung des Arbeitskreises am 12. 3. 1959 in Nürnberg vorgelegt und von den anwesenden Mitarbeitern gebilligt. Änderungen, die sich aus der Diskussion ergaben, sind berücksichtigt. (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 162-171 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Description / Table of Contents: The ferr oxyl tesAll solutions containing potassium ferricyanide and sodium chloride cause pitcorrosion on nickel coatings. With constant sodium chloride content, the corrosion attack is the stronger the higher the ferricyanide content, and the higher the temperature of the solution.With thin nickel coatings, the ferroxyl test provides so many blue spots that there is no longer any point in counting them. From 12 m̈ Ni onwards, mustard yellow spots are encountered which must be interpreted as products of the ferricyanidel nickel reaction. If exposed to the solution for a longer period, these spots become blue.The ferroxyl test is thus not suited for determining the porosity of Ni coatings. Its usefulness as a corrosion test is impaired by the fact that the test is difficult to reproduce. Even if the test conditions are laid down in great detail, the results obtained by different observers vary greatly.
    Notes: Sämtliche Kaliumferricyanid und Natriumchlorid enthaltende Lösungen greifen Nickelüberzüge lochfraßartig an. Bei gleichgehaltenem Gehalt an Natriumchlorid ist der Angriff umso stärker, je höher der Ferricyanidgehalt und je höber die Temperatur der Lösung ist.Bei dünnen Nickelüberzügen findet man durch die Ferroxylprüfung so zahlreiche blaue Flecken, daß die Auszählung nicht mehr sinnvoll ist. Ab 12 m̈ Ni treten senfgelbe Flecken auf, die als Produkt der Einwirkung des Ferricyanides auf Ni zu deuten sind. Bei längerer Einwirkung der Lösung verwandeln sie sich in blaue Flecken.Die Ferroxylprobe ist also zur Bestimmung der Porigkeit von Ni-Überzügen ungeeignet. Ihrer Anwendung als Korrosionsprobe steht die sehr schlechte Reproduzierbarkeit entgegen. Auch bei weitgehender Festlegung der Versuchsbedingungen weichen die Ergebnisse verschiedener Beobachter stark voneinander ab.
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    Anorganische Überzüge nichtmetallischer Natur (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 191-192 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110314
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    Umschau (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 203-205 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110320
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    Laborversuche über den korrosionsmindernden Einfluß der Kühlung von Edelstählen in heißer, konzentrierter Schwefelsäure (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 216-219 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Additional Material: 12 Ill.
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    Eine oszillographische Untersuchung der Bildung eines basischen Bleisulfats PbO · PbSO4 als Zwischenprodukt bei intermittierter, galvanostatischer Belastung am Stoffsystem Pb/PbSO4/PbO2 (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 220-223 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Additional Material: 1 Ill.
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    Anorganische Überzüge nichtmetallischer Natur (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 238-241 
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    Source: Wiley InterScience Backfile Collection 1832-2000
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    Kupferrohr-Installation. 1959. 56 S., 30 Abb., 8 Tab.; Brosch. DIN A 5. Deutsches Kupfer-Institut e. V., Berlin-Charlottenburg 2 (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 255-255 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110418
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    Werkstoff und Schweißung, Bd. II u. III. Von F. Erdmann-Jesnitzer. Akademie-Verlag, Berlin 1954 (Bd. II), 1959 (Bd. III). Bd. II: XVII, 617 Seiten mit zahlreichen Abbildungen. Bd. III: XVII, 372 Seiten mit Anhang zu Teil I und II (254 Seiten) und zahlreichen Abbildungen. Gesamtpreis der Bde. I-III 175,- DM. (Nur geschlossen lieferbar.) (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 255-256 
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    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110421
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    Berechnung von gußeisernen emaillierten Druckbehältern. Von G. Matz und P. Gayer (Messungen an einem 6 cbm-Rührwerksbehälter) Springer, Berlin 1959, 97 Abb., 11 Aufg., 233 S., Ganzleinen geb. DM 37,50 (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 329-330 
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    ISSN: 0947-5117
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    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110525
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    ASTM specifications for steel piping materials. Prepared by ASTM Committee A-1 on Steel (Pipe, Tubes, Castings, Forgings, Bolting) April 1959; Published by the American Society for Testing Materials, 1916 Race St., Philadelphia 3, Pa (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 330-330 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
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    URL: http://dx.doi.org/10.1002/maco.19600110529
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    Personalnachrichten (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 335-336 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110533
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    Über kinetische Beziehungen zwischen beschleunigter und natürlicher atmosphärischer Korrosion (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 348-351 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Description / Table of Contents: Kinetic relations between accelerated and natural atmospheric corrosionOn the strength of the kinetically determining combination of factors of atmospheric corrosion (over-critical humidity; SO2 content up to 0,01 per cent.), an accelerated corrosion test has been designed the results of which are quantitatively related to the progress of corrosion in natural atmospheres. This has been achieved by analysing the corrosion time curves of natural corrosion and accelerated corrosion of carbon steel (representing the ferrous metals) and zinc (representing the non-ferrous metals). This analysis shows that the curves have a comparable trend so that the corrosion values of the two metals are also comparable. This result has permitted the working out of a method for the calculation of the acceleration coefficients applicable to the short-time test, and the determination of these coefficients.
    Notes: Auf Grund der kinetisch bestimmenden Faktorenkombination der atmosphärischen Korrosion (überkritische Feuchtigkeit - SO2-Gehalt bis zu 0,1%) wurde eine beschleunigte Korrosionsprüfung entworfen, deren Ergebnisse quantitativ mit dem Korrosionsverlauf in natürlichen Atmosphären in Beziehung stehen. Dies wurde durch eine Analyse der Korrosion-Zeit-Kurven, welche bei Naturbedingungen und beschleunigter Korrosion an Kohlenstoffstahl (als Vertreter von Eisenmetallen) und Zink (als Vertreter von Nichteisenmetallen) festgelegt. Diese Analyse zeigte einen vergleichbaren, Verlauf dieser Kurven und daher auch vergleichbare Werte der Korrosion der beiden Metalle. Dieses Ergebnis ermöglichte eine Methode zur Berechnung der Beschleunigungskoeffizienten der Kurzprüfung zu entwerfen und die Koeffizienten zu bestimmen.
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    Korrosionsstudien an Stahlrohren eines Versuchsverdampfers der Zuckerindustrie (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 337-347 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Corrosion studies on the steel tubes of a test evaporator in the sugar industryUp to now, corrosion at the evaporator tubes in the sugar industry has been largely attributed to the oxygen of the air dissolved in the juice. It is found, however, that corrosion on the juice side is mainly encountered in sugar factories working with dehardeners, especially if the parts concerned are on the downstream side of brass-tubed preheaters or evaporators.For the corrosion investigations, an experimental evaporator was built, and erected in a sugar factory. By means of the evaporator which handled about 10 % of the juice of the factory, tests were carried out during two campaigns. It was found that the intensity of corrosion was only slightly affected by the injection of greater quantities of oxygen.When, during the second campaign, the dissolution of iron was found to increase ten to twenty times, it was ascertained that this corrosion could no longer be ascribed to oxygen alone. It could be proved that, from a copperplated diffusing apparatus, copper was able to enter the evaporator together with the juice, leading to the formation of galvanic cells of deposited copper and iron. Corrosion with hydrogen development could be proved without doubt.
    Notes: Für die Verdampferrohrkorrosion in der Zuckerindustrie wurde bisher vorwiegend der im Saft gelöste Luftsauerstoff verantwortlich gemacht; saftseitige Korrosionen treten jedoch vorwiegend in Fabriken auf, die mit Enthärtungsanlagen arbeiten, insbesondere, wenn die angegriffenen Apparate hinter messingberohrten Vorwärmern oder Verdampfapparaten geschaltet waren.Für die Korrosionsuntersuchungen wurde ein Versuchsverdampfer gebaut, der in einer Zuckerfabrik aufgestellt wurde. Mit Hilfe des Verdampfers, der etwa 10% des Fabriksaftes verarbeitete, wurden in 2 Kampagnen verschiedene Versuche durchgeführt. Das Einblasen größerer Sauerstoffmengen in den Saft hatte dabei nur einen geringen Einfluß auf die Korrosion.Als in der 2. Kampagne die Eisenauflösung sich auf das 10- bis 20fache vergrößerte, stellte sich heraus, daß der Sauerstoff allein für diese Korrosion nicht mehr verantwortlich war. Es wurde nachgewiesen, daß aus einer verkupferten Diffusionsapparatur Kupfer mit dem Saft in den Verdampfer gelangte und dort zur Bildung galvanischer Elemente von abgeschiedenem Kupfer und Eisen führte. Eindeutig konnte eine Korrosion unter Wasserstoffentwicklung nachgewiesen werden.
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    Eisenmetalle (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 381-383 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110608
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    Werkstoffe. Von J. Flimm. Band I: Legierungsbildung, Stahl und Eisen 2. Auflage, 200 Seiten, 169 Abbildungen, Lenin DM 18,80 (1958), erschienen im Georg Westermann Verlag Braunschweig, Best.-Nr. 3140 (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 396-396 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110612
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    Nachrichten (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 400-400 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110619
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    Korrosion von Zink in NaCl-Lösungen (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 410-416 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Description / Table of Contents: Corrosion of zinc in sodium chloride solutionsCorrosion tests have been carried out with 99.99 pC zinc in distilled water and in NaCl solutions with 30, 90 and 200 gram of NaCl per litre at 250°C. The quantity of corroded metal was determined polarographically after tests lasting 20, 40, 80, 160 and 320 minutes. In addition, the oxygen and carbon dioxide content of the different solutions was determined, and the potential of the corroding zinc specimens was measured.The tests had the following results:The corrosion rate of zinc increases, during the initial stage of the reaction, with the increase of the NaCl concentration in the solution.If the corrosion rate decreases in individual cases, this relationship can be expressed by the following empiric equation: \documentclass{article}\pagestyle{empty}\begin{document}$$ \frac{{dk}}{{dt}} = A \cdot t^{ -{\rm B}} $$\end{document} where B ranges from 0 to 1.The potential of the corroding test specimen decreases as the NaCl concentration increases.The potential of the corroding test specimen also decreases with the time.An examination of the test results on the strength of the Nernst-Tafel formula shows that the share of the hydrogen depolarisation is very small within the corrosion range investigated. By means of hypothetical polarisation curves, it was possible to explain the influence of the NaCl concentration on the corrosion rate.The increase of the zinc-corrosion rate in solutions with decreasing oxygen concentration indicates that the micro-elements in the system investigated work at current values below the critical oxygen current.
    Notes: Es wurden Korrosionsversuche mit Zinc 99,99 in destilliertem Wasser und in NaCl-Lösungen mit 30; 90; 200 NaCl g/l bei 25° C durchgeführt. Die Menge des korrodierten Metalls wurde polarographisch nach einer Versuchsdauer von 20, 40, 80, 160, 320 min. festgestellt. Außerdem wurde jeweils der Sauerstoff- und Kohlendoxyd-Gehalt der verschiedenen Lösungen bestimmt und das Potential der korrodierenden Zinkproben gemessen.Die durchgeführten Versuche ergaben:Die Korrosionsgeschwindigkeit des Zinks nimmt während des Anfangsstadiums der Reaktion mit zunehmender NaCl-Konzentration der Lösung zu.Nimmt die Korrosionsgeschwindigkeit in einzelnen Fällen mit der Zeit ab, so läßt sich diese Abhängigkeit durch folgende empirische Gleichung beschreiben \documentclass{article}\pagestyle{empty}\begin{document}$$ \frac{{dk}}{{dt}} = A \cdot t^{ -{\rm B}} ({\rm O} 〈 B 〈 1) $$\end{document}Das Potential der korrodierenden Versuchsprobe nimmt mit zunehmender NaCl-Konzentration und Versuchsdauer ab.Die Überprüfung der Versuchsergebnisse nach der Formel von Nernst und Tafel weist aus, daß der Anteil der Wasserstoffdepolarisation im untersuchten Korrosionsbereich nur gering ist. Hypothetische Polarisationskurven ließen den Einfluß der NaCl-Konzentration auf die Korrosionsgeschwindigkeit erklären.Das Ansteigen der Zink-Korrosions-Geschwindigkeit in Lösungen mit abnehmender Sauerstoffkonzentration deutet an, daß die Mikroelemente in dem untersuchten System, bei Stromstärken, die unter der Sauerstoffgrenzstromstärke liegen, arbeiten.
    Additional Material: 6 Ill.
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    Organische Werkstoffe (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 446-448 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110710
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    Pêtijazyčný slovnik. Barvy, laky, povrochova úprava, korose. (Fünfsprachenwörterbuch. Farben, Lacke, Oberflächenbehandlung, Korrosion). Von R. Santholzer und J. Kořinský. Státni nakladatelstvitechnicke Literatury, Prag 1959, 2. Auflage. 436 S. Preis: geb. DM 12.30 (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 456-456 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110713
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    „Lupolen“, Broschüre der Badischen Anilin- & Sode-Fabrik AG., Ludwigshafen/Rhein, B 240 d, Okt. 1959, 96 S (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 458-458 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110717
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    „Kupfer-Nickel“, 76 S., 41 Schau- und Gefügebilder, 27 Zahlentafeln. Nov. 1959. Deutsches Kupfer-Institut e. V., Berlin-Charlottenburg 2. DIN A 5 (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 458-458 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110721
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    Personalnachrichten (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 464-464 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110725
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    Über die elektrolytische Abscheidung von Eisen-Chrom-Nickel-Legierungen (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 481-487 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Description / Table of Contents: The electrolytic deposition of iron-chromium-nickel alloysIron-chromium-nickel alloys of a composition corresponding to 18/8 chromium nickel steel can be deposited from the aqueous solutions of the sulphates of the three metals in the presence of urea and boric acid. By means of an appropriate choice of the concentrations of the components of the bath, of the pH value and of the temperature, it is possible to bring the deposit potentials of the three individual metals as well as of the alloy to virtually the same value of EH = -0.68 V. The composition of the alloy is influenced by changes in the concentration of the bath constitutents, this influence being greatest for iron, less great for nickel, and smallest for chromium.Current yield and composition of the alloy are governed by a diaphragm forming on the cathode surface and consisting of chromium hydroxide. The three metals impede each other considerably in the deposition of the alloy.
    Notes: Eisen-Chrom-Nickel-Legierungen, deren Zusammensetzung dem 18/8-Chrom-Nikkel-Stahl entspricht, können aus den wäßrigen Lösungen der Sulfate der drei Metalle in Gegenwart von Harnstoff und Borsäure abgeschieden werden. Durch geeignete Wahl der Konzentration der Bestandteile, des pH-Wertes und der Temperatur können die Abscheidungspotentiale sowohl der drei Einzelmetalle als auch der Legierung auf praktisch den gleichen Wert von EH = -0,68 V gebracht werden. Die Zusammensetzung der Legierung wird durch Veränderung der Konzentrationen der Bestandteile beeinflußt, wobei dieser Einfluß am größten für Eisen, geringerer für Nickel und am kleinstem für Chrom ist.Für die Stromausbeuten und die Zusammensetzung der Legierung ist ein aus Chromhydroxyd bestehendes, sich auf der Kathodenoberfläche ausbildendes Diaphragma entscheidend. Die drei Metalle behindern sich beträchtlich gegenseitig bei der Abscheidung der Legierung.
    Additional Material: 3 Ill.
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    Nichteisenmetalle (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 497-506 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
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    URL: http://dx.doi.org/10.1002/maco.19600110808
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    Patentschau (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 518-523 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110812
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    Guß aus Kupfer und Kupferlegierungen. 28 S., 18 Abb., 3 Zahlenaufstellungen, November 1959, geheftete Informationsschrift, herausgegeben vom Deutschen Kupfer-Institut e. V., Berlin-Charlottenburg 2, und dem Gesamtverband Deutscher Metallgießereien (GDM), e. V., Düsseldorf (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 524-524 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    Aus Industrie und Technik (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 526-527 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110822
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    Kurzreferate zu den Originalarbeiten (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. XXX 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110826
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    Elektrokapillare Adsorptionsmessungen mit einigen organischen Inhibitoren (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 552-554 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Description / Table of Contents: Investigation of electrocapillary curvesElectrocapillary curves for a system Hg-1N aqueous solution of H2SO4 with small amounts of sulphoxides, amines, thiourea and diphenylthiourea have been investigated. The electrocapillary results which well agree with inhibition efficacy of such compounds indicate that neutral molecules are responsible in inhibition processes.
    Notes: Aufgenommen wurden Elektrokapillarkurven für das System Hg/1 n-H2SO4 mit Zusatz von verschiedenen Sulfoxyden, Aminen, Thioharnstoff und Diphenylthioharnstoff. Zwischen den hierbei erhaltenen Resultaten und denen bezüglich der Sparbeizwirkung von neutralen Molekülen bei diesem Adsorptionsprozeß wurde eine gute Übereinstimmung gefunden.
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    Nichtmetallische anorganische Werkstoffe (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 570-570 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
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    URL: http://dx.doi.org/10.1002/maco.19600110909
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    „Die DIN-gerechte Werkzeichnung“ von W. Gross und K. Wilhelm. Dümmler, Bonn 1959. 56.-59. Aufl., 64 S. mit zahlreichen Abb. DIN A 5, cellophaniert, DM 2,80 (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 592-592 
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    Keywords: Chemistry ; Polymer and Materials Science
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    Fachwörterbuch für die Metalloberflächenveredelung. Von H. W. Dettner. Deutsch-Englisch, Englisch-Deutsch, Berlin (1960) 391 S. Preis: Geb. in Leinen DM 24,- (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 592-592 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
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    URL: http://dx.doi.org/10.1002/maco.19600110919
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    Aufstellung eines Zustands-Diagramms für das System Metall/Elektrolyt (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 622-626 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
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    Description / Table of Contents: Determining the condition diagram of the metal/electrolyte systemIn this paper, the corrosion reaction is examined on the strength of theoretical results which are experimentally accessible. The corrosion rate was represented by the differential equaiton \documentclass{article}\pagestyle{empty}\begin{document}$$ dv = \left( {\frac{{I \cdot v}}{{I \cdot c}}} \right)_{t,T} + \left( {\frac{{I \cdot v}}{{I \cdot t}}} \right)_{c,T} dt $$\end{document} where t is the duration of the test, c the concentration of the corrosive substance, and T the temperature. This equation has two characteristic terms: \documentclass{article}\pagestyle{empty}\begin{document}$$ \begin{array}{c} \left( {\frac{{Iv}}{{Ic}}} \right)and\left( {\frac{{Iv}}{{It}}} \right).\,\,{\rm The\,\,equation} \\ v = Kc^n t^n\,e^{ - kct} \end{array} $$\end{document} can be used for the linear, hyperbolic and exponential corrosion rate v = f(c) or v = f1(t).
    Notes: In diesen Beitrag wird die Korrosionsreaktion auf Grund theoretischer und experimentell zugänglicher Ergebnisse verfolgt. Die Korrosionsgeschwindigkeit v wurde durch die Differentialgleichung \documentclass{article}\pagestyle{empty}\begin{document}$$ dv = \left( {\frac{{I \cdot v}}{{I \cdot c}}} \right)_{t,T} + \left( {\frac{{I \cdot v}}{{I \cdot t}}} \right)_{c,T} dt $$\end{document} dargestellt, wobei t die Versuchsdauer, c die Konzentration des aggressiven Stoffes und T die Temperatur bedeuten. Diese Gleichung besitzt zwei charakteristische \documentclass{article}\pagestyle{empty}\begin{document}$$\begin{array}{c} Glieder{\rm }\left( {\frac{{Iv}}{{Ic}}} \right)und\left( {\frac{{Iv}}{{It}}} \right).\,{\rm Die\,\,Gleichung} \\ v = Kc^n t^n\,e^{ - kct} \\ \end{array}$$\end{document} Kann man für die lineare, hyperbolische und exponentielle Korrosionsreaktion v = f (c) bzw. v = f1(t) verwenden.
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    Organische Werkstoffe (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 658-660 
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    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
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    URL: http://dx.doi.org/10.1002/maco.19600111012
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    Anorganische Überzüge nichtmetallischer Natur (1960)
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    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 664-664 
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    Keywords: Chemistry ; Polymer and Materials Science
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    URL: http://dx.doi.org/10.1002/maco.19600111014
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    Personalnachrichten (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 672-672 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600111019
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    Potential- und Stromverteilung bei kathodischem KorrosionsschutzVortrag, gehalten während der 6. Veranstaltung der Europäischen Föderation Korrosion, „Kathodischer Korrosionsschutz“ am 7. u. 8. April 1960 in Frankfurt/Main.  -  Sämtliche Vorträge erscheinen demnächst in „Korrosion 14“ im Verlag Chemie, GmbH., Weinheim/Bergstr. (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 673-680 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Distribution of potential and current with cathodic corrosion protectionThe distribution of the potential and of the current in local cells and with cathodic corrosion protection can be calculated from the differential equation for the electric field in an electrolyte solution. The relevant limit conditions are formulated in a general way. In the case of sacrificial anodes and external current, solutions for simple limit conditions are put forward, and the general conclusions are discussed. Where it is necessary to protect major objects, it appears desirable to use external current which is automatically regulated in such a way that the local electrode potential, measured by a probe at the most exposed point, is equal to the potential of a just about negligible metal dissolution, but not much more negative, so that cathodic hydrogen development is minimized, especially at points situated next to the anode.
    Notes: Potentialverteilung und Stromverteilung in Lokalelementen und bei kathodischem Korrosionsschutz lassen sich aus der Differentialgleichung für das elektrische Feld in einer Elektrolytlösung berechnen. Die zugehörigen Grenzbedingungen werden in allgemeiner Form aufgestellt. Für Schutz mit Opferanoden und mit Fremdstrom werden Lösungen für einfache Grenzfälle mitgeteilt und die praktischen Schlußfolgerungen besprochen. Falls größere Objekte zu schützen sind, erscheint es empfehlenswert, Fremdstrom zu verwenden, dessen Stärke automatisch derart geregelt wird, daß das mit einer Sonde an der am meisten gefährdeten Stelle gemessene örtliche Elektrodenpotential gleich dem Potential gerade noch vernachlässigbarer Metallauflösung ist, jedoch nicht wesentlich negativer, um kathodische Wasserstoffentwicklung auf einem Minimum zu halten, insbesondere an Stellen, die nächst der Anode gelegen sind.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600111102
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  • 98
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    Electronic Resource
    Eisenmetalle (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 710-712 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600111108
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  • 99
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    Electronic Resource
    Untersuchung der Struktur und anderer Eigenschaften von durch anodische Oxydation auf Aluminium erzeugten Hartoxydschichten (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 701-707 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Description / Table of Contents: Investigations on structure and other properties of hard oxide layers produced upon aluminium by anodic oxidationAfter a short survey of the formation mechanism of oxide layers growing upon aluminium during anodic oxidation the report presents experimental results obtained in investigating the growth of hard oxide layers in dilute sulfuric acid. Particular reference is made to the initial period of anodization and to changes in surface roughness measured during surface refining. Additional data cover results of thickness measurements on barrier layers and total layers, as well as oxide structure and chemical composition of the oxide layers. According to these findings the formation mechanisms, the structure and the chemical composition of layers produced by hard-anodizing exhibit the same regularities and basic structure as normal eloxal-layers.
    Notes: In diesem Bericht werden nach einem kurzen Überblick über die Entstehung der durch anodische Oxydation auf der Aluminiumoberfläche sich bildenden Oxydschichten die Untersuchungsergebnisse geschildert, die bei dem Wachstum der in verdünnter Schwefelsäure hergestellten Hartoxydschichten erzielt wurden. Näher beschrieben und gekennzeichnet werden die Anfangsperiode der Anodisierung und die bei der Oberflächenveredelung gemessene Veränderung der Oberflächenunebenheiten. Weiter werden die Ergebnisse von Sperr- und Gesamtschichtdickemessungen sowie die Resultate der Untersuchungen der Oxydstruktur und der chemischen Zusammensetzung der Oxydschichten mitgeteilt. Hiernach zeigen der Bildungsmechanismus, die Struktur und chemische Zusammensetzung der durch Hartoxydation erzeugten Schichten dieselben Regelmäßigkeiten und denselben prinzipiellen Aufbau wie die normalen Eloxalschichten.
    Additional Material: 9 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600111105
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  • 100
    Electronic Resource
    Electronic Resource
    Umschau (1960)
    Weinheim [u.a.] : Wiley-Blackwell
    Materials and Corrosion/Werkstoffe und Korrosion 11 (1960), S. 730-732 
    Details
    ISSN: 0947-5117
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/maco.19600111116
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