Advertisement

Journal of Materials Science

, Volume 26, Issue 13, pp 3675–3679 | Cite as

Internal friction due to G-P zones in pure Al-16 wt % Ag and Al-16 wt % Ag-0.2 wt % Fe-0.1 wt % Si alloys

  • G. Graiss
  • R. Shinoda
  • N. Habib
Papers

Abstract

A study has been made of an internal friction peak which occurs due to the precipitation of Guinier-Preston zones from two supersaturated Al-Ag alloys. The peak observed was interpreted as being due to relaxation around the zones of different elastic constants from that of the Al matrix. Differences in internal friction characteristics between specimens heated at 100 and 200 °C were attributed to the reversion process occurring around 200 °C in pure alloy. The height of the relaxation peak and the level of internal friction background were found to be highly affected by the presence of Fe and Si impurities in the doped alloy.

Keywords

Polymer Precipitation Elastic Constant Internal Friction Relaxation Peak 
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.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. B. Nicholson andJ. Nutting,Acta Metall. 9 (1961) 332.Google Scholar
  2. 2.
    A. Guinier,J. Phys. Radium 8 (1942) 122.Google Scholar
  3. 3.
    G. Ziegler,Z. Metallkde 43 (1952) 213.Google Scholar
  4. 4.
    A. H. Geisler, C. S. Barret andR. F. Hehl,Trans. Amer. Inst. Min. (Metall.) Eng. 152 (1943) 182.Google Scholar
  5. 5.
    K. Hirano, Y. Hirose andK. Asano, “Keikinzoku” (Light Metals)20 (1970) 589.Google Scholar
  6. 6.
    R. Schaller andW. Benoit, in “Proceedings 3rd ECIFUAS”, Manchester, eedited by C. C. Smith (Pergamon Press, Oxford, 1980) pp. 311–16.Google Scholar
  7. 7.
    R. Schaller andW. Benoit,J. de Phys. 42 (1981) C5–881.Google Scholar
  8. 8.
    G. Schoeck,Phys. Status Solidi 32 (1969) 651.Google Scholar
  9. 9.
    G. Schoeck andE. Bisogni,ibid. 32 (1969) 31.Google Scholar
  10. 10.
    R. Monzen, K. Suzuki, A. Sato andT. Moi,Acta Metall. 31 (1983) 519.Google Scholar
  11. 11.
    T. Mori, M. Okabe andT. Mura,ibid. 28 (1980) 319.Google Scholar
  12. 12.
    M. Okabe, T. Mori andT. Mura,Phil. Mag. A 44 (1980) 1.Google Scholar
  13. 13.
    R. Schaller andW. Benoit,Mem. Sci. Rev. Met. 76 (1979) 521.Google Scholar
  14. 14.
    A. C. Damask andA. S. Nowick,J. Appl. Phys. 26 (1955) 1165.Google Scholar
  15. 15.
    J. D. Eshelby,Proc. Roy. Soc. Lond. A 241 (1957) 376.Google Scholar
  16. 16.
    Idem., ibid. 252 (1959) 561.Google Scholar
  17. 17.
    C. Laird andH. I. Aaronson,Acta Metall. 15 (1967) 73.Google Scholar
  18. 18.
    K. Hirano, Y. Hirose andK. Asano,“Keikinzoku” (Light Metals) 20 (1971) 595.Google Scholar
  19. 19.
    O. Takai, R. Yamamoto, M. Doyama andY. Hisamatsu,Phys. Rev. B 10 (1974) 313.Google Scholar
  20. 20.
    M. Doyama,J. Nucl. Mater. 69, 70 (1978) 350.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • G. Graiss
    • 1
  • R. Shinoda
    • 1
  • N. Habib
    • 1
  1. 1.Faculty of EducationAin Shams UniversityCairoEgypt

Personalised recommendations