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Journal of Materials Science

, Volume 19, Issue 2, pp 599–606 | Cite as

The embrittlement of Sn-Al eutectic alloy in water vapour

  • F. O. Muktepavel
  • G. P. Upit
Papers

Abstract

The present paper is concerned with the study of strength and structural properties of phase boundaries of eutectic alloy becoming brittle after having been exposed to damp air. Interfaces of solid phase joints of tin with aluminium served as simple phase boundary models for this system. It was found (by SIMS technique) that alloy brittleness is caused by chemical absorption of hydrogen on phase boundaries, which leads to the damage of phase adhesion. The chemical absorption of hydrogen increases due to microdiscontinuities present on phase boundaries. Wetting tests and the results on kinetics of embrittlement show that the effect is a nonreversible one and is associated with the formation of hydrides. The mechanism of embrittlement is discussed in terms of the thermodynamic characteristics of the system investigated.

Keywords

Hydrogen Polymer Aluminium Brittle Water Vapour 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    G. V. Samsonov (ed), “The Properties of Elements Handbook” (Metallurgija, Moscow, 1970) p. 806.Google Scholar
  2. 2.
    G. M. Scamans, R. Alani andP. R. Swann,Corros. Sci. 16 (1976) 443.Google Scholar
  3. 3.
    G. M. Scamans,J. Mater. Sci. 13 (1978) 27.Google Scholar
  4. 4.
    M. A. Vasilyev andF. O. Muktepavel,Metallophysics 71 (1978) 12.Google Scholar
  5. 5.
    G. P. Upit andF. O. Muktepavel,Izv. Acad. Nauk Latv. SSSR Ser. Fiz. Tek. Nauk 4 (1978) 43.Google Scholar
  6. 6.
    V. T. Cherepin andM. A. Vasilyev, “Secondary Ion-Ion Emission of Metals and Alloys” (Naukova Dumka, Kiev, 1975) p. 237.Google Scholar
  7. 7.
    F. Winter andW. Gruhl,Metall. 31 (1977) 595.Google Scholar
  8. 8.
    J. M. Bernstein,Met. Trans. 1 (1970) 3143.Google Scholar
  9. 9.
    M. Kh. Karapetyants andM. Z. Karapefyants, “Basis Thermodynamic Constants of Inorganic and Organic Matters” (Khimiya, Moscow, 1968) p. 467.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1984

Authors and Affiliations

  • F. O. Muktepavel
    • 1
  • G. P. Upit
    • 1
  1. 1.Institute of PhysicsLatvian SSR Academy of SciencesRiga, SalaspilsUSSR

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