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Cavitation and cavity growth during superplastic flow in microduplex Cu-Zn-Ni alloys

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Abstract

A study has been made of cavity growth during superplastic tensile deformation of two microduplex α/β nickel-silvers, one a Cu-Zn-Ni alloy and the other a Cu-Zn-Ni-Mn alloy. For cavities with radii of >0.5 /gmm, measured growth rates were found to be in good agreement with values calculated on the assumption that cavity growth was controlled by viscous flow of the matrix. For smaller cavity sizes a diffusional growth mechanism could predominate. Metallography revealed that cavity morphology changed with strain in a manner consistent with diffusion-controlled growth at small sizes, and matrix deformation controlled growth at intermediate and large cavity sizes. Density studies showed that the overall level of cavitation was independent of both strain rate and temperature, and was influenced only by strain.

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References

  1. D. W. Livesey and N. Ridley:Metall. Trans. A, 1978, vol. 9A, pp. 519–26.

    CAS  Google Scholar 

  2. C. W. Humphries and N. Ridley:J. Mater. Sci., 1978, vol. 13, pp. 2477–82.

    Article  CAS  Google Scholar 

  3. W. J. D. Patterson and N. Ridley:J. Mater. Sci., 1981, vol. 16, pp. 457–64.

    Article  CAS  Google Scholar 

  4. M. Suéry and B. Baudelet:Phil. Mag. A, 1980, vol. 41, pp. 41–64.

    Google Scholar 

  5. T. Chandra, J. J. Jonas, and D. M. R. Taplin:J. Mater. Sci., 1978, vol. 13, pp. 2380–84.

    Article  CAS  Google Scholar 

  6. S-A. Shei and T. G. Langdon:J. Mater. Sci., 1978, vol. 13, pp. 1084–92.

    Article  CAS  Google Scholar 

  7. J. Belzunce and M. Suéry:Scripta Met., 1981, vol. 15, pp. 895–98.

    Article  CAS  Google Scholar 

  8. G. H. Reynolds and R. D. Schelleng:Metall. Trans., 1972, vol. 3, pp. 1837–41.

    CAS  Google Scholar 

  9. R. D. Schelleng and G. H. Reynolds:Metall. Trans., 1973, vol. 4, pp. 2199–203.

    CAS  Google Scholar 

  10. D. M. Ward, B. J. Helliwell, and P. J. Penrice:Metallurgia and Metal Forming, 1973, vol. 10, pp. 319–24.

    Google Scholar 

  11. E. Scheil and A. Lange-Weisse:Arch. Eisenhuttenw: 1937, vol. 11, pp. 93–95.

    CAS  Google Scholar 

  12. K. Matsuki, H. Monta, M. Yamada, and Y. Murkami:Met. Sci., 1977, vol. 11, pp. 156–63.

    CAS  Google Scholar 

  13. H. Gleiter, E. Hornbogen, and G. Baro:Acta Met., 1968, vol. 16, pp. 1053–68.

    Article  CAS  Google Scholar 

  14. D. Hull and D. E. Rimmer:Phil. Mag., 1959, vol. 4, pp. 673–87.

    CAS  Google Scholar 

  15. M. V. Speight and J. E. Harris:Met. Sci., 1967, vol. 1, pp. 83–85.

    Article  CAS  Google Scholar 

  16. M. V. Speight and W. Beeré:Met. Sci., 1975, vol. 9, pp. 190–91.

    Article  Google Scholar 

  17. M. F. Ashby:Acta Met., 1972, vol. 20, pp. 887–97.

    Article  CAS  Google Scholar 

  18. J. W. Hancock:Met. Sci., 1976, vol. 10, pp. 319–25.

    Article  CAS  Google Scholar 

  19. F. A. McClintock:J. Appl. Mech., 1968, vol. 35, pp. 363–71.

    Google Scholar 

  20. R. Raj and M. F. Ashby:Acta Met., 1975, vol. 23, pp. 643–66.

    Google Scholar 

  21. M. F. Ashby:Acta Met., 1974, vol. 22, pp. 275–89.

    Article  CAS  Google Scholar 

  22. H. Jones:Met. Sci., 1971, vol. 5, pp. 15–18.

    Article  CAS  Google Scholar 

  23. D. A. Miller and T. G. Langdon:Metall. Trans. A, 1979, vol. 10A, pp. 1869–74.

    CAS  Google Scholar 

  24. M. J. Stowell:Met. Sci., 1980, vol. 14, pp. 267–72.

    Article  CAS  Google Scholar 

  25. A. K. Ghosh: Rockwell International Science Center, Thousand Oaks, CA, unpublished research, 1981.

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Livesey, D.W., Ridley, N. Cavitation and cavity growth during superplastic flow in microduplex Cu-Zn-Ni alloys. Metall Trans A 13, 1619–1626 (1982). https://doi.org/10.1007/BF02644802

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