ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
Collection
Publisher
Years
  • 1
    facet.materialart.
    Unknown
    Structure of chemical elements deposited with atmospheric precipitation in the north of the European territory of Russia derived with multivariate analysis methods (2008)
    Springer
    Details
    Publication Date: 2008-12-01
    Print ISSN: 1068-3739
    Electronic ISSN: 1934-8096
    Topics: Geography , Physics
    Published by Springer
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
  • 2
    Electronic Resource
    Electronic Resource
    Effect of original grain size on structure and properties of copper alloys after deformation and annealing (1977)
    Springer
    Metal science and heat treatment 19 (1977), S. 204-207 
    Details
    ISSN: 1573-8973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusions 1. Reduction of the original grain size (before deformation) from 200 to ∼30 μ leads to an increase in the strength characteristics, electrical resistivity, and width of x-ray lines in deformed bronze Br. A7 and brass L68 and substantially increases the strengthening effect during subrecrystallization annealing. TABLE 1 Alloy ɛ, % σ0 K Br.A7 20 22/22 3,5/7,0 50 41/60 2,0/4,5 75 44/75 0,5/4,0 L68 20 28/28 1,0/2,0 50 38/50 0,5/1,5 75 42/60 0,5/2,0 Note.Numerators give the values of σ0and K after deformation, denominators—after deformation and subrecrystallizationannealing. 2. With increasing deformation the effect of the grain size on the elastic limit decreases, while the effect on the ultimate strength and yield strength remains almost unchanged. After annealing, the effect of the original grain size on the strength characteristics increases spharply as compared with the deformed condition. 3. Subrecrystallization annealing sharply increases the resistance to deformation of the grain boundaries, and in alloys deformed 50 and 75% substantially increases the resistance to deformation in slip bands.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01167001
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Structural heterogeneity of steel tubes after thermomechanical treatment (1964)
    Springer
    Metal science and heat treatment 6 (1964), S. 497-501 
    Details
    ISSN: 1573-8973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusions 1. We investigated the structural changes through the section of 40KhSNA steel tubes after low temperature themomechanical treatment including rolling with balls. 2. This treatment induces irregular deformation and, as a consequence, the changes in structure through the section are irregular. The deformation is irregular during cold and warm working of austenite in Kh18N9T steel during deformation of tubes under these conditions. 3. The irregular deformation results in the fact that the outer layer of metal 0.15–0.2 mm below the surface of the tube undergoes the maximum plastic deformation and consequently the maximum strengthening of the steel in the austenitic state and the formation of a deformation texture. The strength and the texture decrease in deeper layers (0.3–0.4 mm). 4. The irregular flow of metal over the cross section induces elastic zonal stresses (first-order stresses) which reach 35–45 kg/mm2. 5. Irregular deformation of 40KhSNA steel in the austenitic state at subcritical temperatures (550°C) leads to improvement of the austenite in the outer layer in carbon and the precipitation of carbides during deformation and, correspondingly, to the impoverishment of martensite in carbon after quenching. As the result, this layer has the greatest strength when the steel is in the austenitic state and the lowest strength after quenching to martensite. 6. The structural heterogeneity through the section (with the exception of heterogeneity in the texture) can be partly reduced by secondary rapid heating followed by quenching. At the same time, the texture is preserved and this is an indirect proof of the structural correspondence between the lattices of the initial and the new phase occurring not only as the result of the γ→α transformation during quenching but also as the result of the α→γ transformation during rapid heating.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00652146
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Characteristic features of the formation of metastable structures in alloys of the Mn−Cu system (1985)
    Springer
    Metal science and heat treatment 27 (1985), S. 298-301 
    Details
    ISSN: 1573-8973
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Conclusions 1. When Mn−Cu alloys contain more than 55% of Mn, pronounced heterogenizing of the solid solution, which results in the formation of metastable segregations of almost pure copper for a short homogenizing time, occurs during cooling from the homogeneous γ-region. 2. Heterogenizing of the solid solution during cooling is governed by the presence of a high-temperature β-region not only in alloys with an Mn content higher than 55%, but also in an alloy with 55% of Mn and low copper solubility in the β-modification of the manganese. 3. The difference in the decomposition kinetics of the solid solution in alloys with a different manganese content is governed not by a change in the decomposition mechanism on conversion from an alloy with 45% Mn to alloys with a high Mn content, but by the occurrence of two concurrent processes in alloys containing more than 45% of Mn: manganese enrichment of manganese-impoverished regions during cooling from the temperature of the heat in quenching to values below the solubility limit in the γ-solid solution, and the lamination process of the matrix solid solution with the formation manganese-enriched and-impoverished regions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00652099
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...