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
  • 1980-1984  (5)
Collection
Keywords
Publisher
Years
Year
  • 1
    facet.materialart.
    Unknown
    Effect of rhenium on the structure and properties of the weld metal of a molybdenum alloy (1984)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The structure and properties of welds made in molybdenum alloy VM-1 as a function of rhenium concentrations in the weld metal were studied. Rhenium was introduced into the weld using rhenium wire and tape or wires of Mo-47Re and Mo-52Re alloys. The properties of the weld metal were studied by means of metallographic techniques, electron microscopy, X-ray analysis, and autoradiography. The plasticity of the weld metal sharply was found to increase with increasing concentration of rhenium up to 50%. During welding, a decarburization process was observed which was more pronounced at higher concentrations of rhenium.
    Keywords: METALLIC MATERIALS
    Type: NASA-TM-77491 , NAS 1.15:77491
    Format: application/pdf
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
  • 2
    Electronic Resource
    Electronic Resource
    Chemical reaction of boron with liquid aluminum (1983)
    Springer
    Metal science and heat treatment 25 (1983), S. 631-634 
    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. Chemical reaction products have been determined by electron diffraction analysis; at the original fiber surface there is B2O3; at the interphase boundary of an aluminized fiber there is AlB2; α-AlB12, and β-AlB12. 2. By comparing the results of ethcing the aluminum matrix in different reagents it was established that aluminum diboride dissolves in 20% KOH solution, and it is retained on the surface of a boride fiber by using a 20% NaOH solution and a 10% HCl solution. 3. The strength of aluminized fiber depends on the amount of reaction products, since boride phases formed at the interphase boundary reduce boron fiber corss section and may be the site of brittle fracture initiation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00741930
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Segregation of silicon in silumin-carbon fiber composites (1984)
    Springer
    Metal science and heat treatment 26 (1984), S. 592-595 
    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: Conclusion At the surface of carbon fibers in alloy AL2-carbon tape composites obtained by the liquid phase method, apart from Al4C3 phase, silicon carbide crystals and primary silicon crystals are observed, as a result of which the overall concentration of aluminum carbide in the composite is reduced.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00707797
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Fourth all-union conference of “phase diagrams of metallic systems” alloys of tungsten and molybdenum with rhenium for elastic elements of instruments (1984)
    Springer
    Metal science and heat treatment 26 (1984), S. 153-156 
    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
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00707168
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Features of the interaction of boron with molten aluminum (1984)
    Springer
    Metal science and heat treatment 26 (1984), S. 588-592 
    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. In the reaction of solution of boron in molten aluminum during chemical interaction of boron fibers with molten aluminum, the properties of the fibers improve while in the reaction with the formation of aluminum borides they become poorer. 2. In liquid phase metallization of boron fibers at the aluminum coating-boron fiber interface the following phases are formed: a solid solution of boron in aluminum, AlB2 diboride, and the α-and β-modifications of AlB12 phase. Oxides and spinels were not detected at the fiber-coating interface. 3. Application of the matrix to the fiber by the continuous-casting method makes it possible to create a continuous interface of variable composition. Depending upon the degree of chemical interaction, the composition of the interface may be varied within wide limits without significant loss of strength of the fiber itself.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00707796
    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...