Journal of Materials Science

, Volume 11, Issue 3, pp 510–521 | Cite as

Superplastic deformation of the Pb-Sn eutectic

  • A. E. Geckinli
  • C. R. Barrett


Dynamic observations of grain-boundary sliding during superplastic flow of the Pb-Sn eutectic are reported. These observations confirm the postulate that the dominant deformation mode during superplastic flow is grain-boundary sliding with localized deformation necessary to maintain grain coherency. Extensive grain-boundary sliding is also observed when the strain-rate and/or grain size is outside the superplastic flow regime. Stress relaxation tests were also carried out on the Pb-Sn eutectic. These tests provide data on the activation energy (45±5 kJ mol−1), grain-size dependence (d−3), and stress dependence of superplastic flow in this alloy. A threshold stress of 1.3×106N m−2 for the onset of superplastic deformation is also observed.


Polymer Grain Size Activation Energy Flow Regime Stress Relaxation 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    C. J. Davies, J. W. Edington, C. P. Cutler and K. Padmanabhan, J. Mater. Sci. 5 (1970) 1091.Google Scholar
  2. 2.
    R. H. Johnson, Met. Rev. 15 (1970) 115.Google Scholar
  3. 3.
    R. B. Nicholson, Proceedings of the International Materials Symposium University of California (1972).Google Scholar
  4. 4.
    R. C. Gifkins, University of Melbourne C.S.I.R.C. Report No. 2 (1971).Google Scholar
  5. 5.
    D. J. Dingley, Proceedings of the 3rd Scanning Electron Microscope Symposium (1970) p. 331.Google Scholar
  6. 6.
    E. Geckinli, C. Barrett and L. Anderson, Proceedings of the 29th EMSA Meeting (1971) p. 11.Google Scholar
  7. 7.
    M. F. Ashby and R. A. Verrall, Acta. Met. 21 (1973) 149.Google Scholar
  8. 8.
    C. R. Barrett, Proceedings of the 3rd Nordic High Temperature Symposium, RisØ (1972) p. 80.Google Scholar
  9. 9.
    W. A. Backofen, G. S. Murty and S. W. Zehr, Trans. Met. Soc. AIME 242 (1968) 329.Google Scholar
  10. 10.
    A. Karim and W. A. Backofen, Mat. Sic. Eng. 3 (1968) 306.Google Scholar
  11. 11.
    B. Burton, Scripta Met. 5 (1971) 669.Google Scholar
  12. 12.
    D. Lee and E. W. Hart, Met. Trans. 2 (1971) 1245.Google Scholar
  13. 13.
    A. Ball and M. Hutchinson, Met. Sci. J. 3 (1969) 1.Google Scholar
  14. 14.
    D. H. Avery and W. A. Backofen, Trans. ASM 58 (1965) 551.Google Scholar
  15. 15.
    S. W. Zehr and W. A. Backofen, ibid 61 (1968) 300.Google Scholar
  16. 16.
    H. E. Cline and T. H. Alden, Trans. Met. Soc. AIME 239 (1967) 710.Google Scholar
  17. 17.
    C. M. Packer and O. D. Sherby, Trans. ASM 60 (1967) 21.Google Scholar
  18. 18.
    T. H. Alden, Acta Met. 15 (1967) 469.Google Scholar
  19. 19.
    B. Baudelet and M. Suery, J. Mater. Sci. 7 (1972) 512.Google Scholar
  20. 20.
    D. H. Avery and J. M. Stuart, Sagamore Army Materials Research Conference “Surface and Interfaces II”, Edited by M. Burke, W. Reed and R. Weiss (Syracuse University Press, New York, 1968) p. 371.Google Scholar
  21. 21.
    J. W. Aldrich and D. H. Avery, Second International Conference on the Strength of Metals and Alloys. Pacific Grove, California, Vol. III (1970) p. 1094.Google Scholar
  22. 22.
    W. Lange, A. Hassner and I. Berthold, Phys. Stat. Sol. 1 (1961) 50.Google Scholar
  23. 23.
    W. Lange and D. Bergner, Phys. Stat. Sol. 2 (1962) 1410.Google Scholar
  24. 24.
    H. A. Resing and N. H. Nachtrieb, J. Phys. Chem. Solids 21 (1961) 40.Google Scholar
  25. 25.
    B. Okkerse, Acta Met. 2 (1954) 551.Google Scholar
  26. 26.
    J. P. Stark and W. R. Upthegrove, Trans. ASM 59 (1966) 486.Google Scholar
  27. 27.
    J. E. Bird, A. K. Mukherjee and J. E. Dorn, “Quantitative Relation Between Properties and Microstructure” (Israel University Press, 1969) p. 255.Google Scholar
  28. 28.
    A. Ball and M. M. Hutchinson Met. Sci. J 3 (1969) 3.Google Scholar
  29. 29.
    A. K. Mukherjee, Mat. Sci. Eng. 8 (1971) 83.Google Scholar

Copyright information

© Chapman and Hall Ltd. 1976

Authors and Affiliations

  • A. E. Geckinli
    • 1
  • C. R. Barrett
    • 1
  1. 1.Department of Materials Science and EngineeringStanford UniversityStanfordUSA

Personalised recommendations