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High-resolution analytical electron microscopy study of isothermal plate-shaped products in some β-phase alloys

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Abstract

The isothermal plate-shaped products in β-phase Cu-Zn-Al, Cu-Zn-Au, and Ag-Cd alloys have been studied from the viewpoints of morphology, crystal structure, and composition using a high-resolution analytical electron microscope equipped with a field-emission electron gun. It is shown that thin plate-shaped products, at early stages of the isothermal formation, exhibit crystallographic properties characteristic of martensites formed at subzero temperatures but that their compositions were definitely different from those of the surrounding matrices. Therefore, atom diffusion is conceivable to be involved in the plate formation from the nucleation stage and to occur across the coherent plate/matrix interfaces. In order for nucleation of the isothermal transformation to occur, two kinds of reactions should be thermally activated at intermediate temperatures above To for the martensitic transformation: (1) atom diffusion to achieve the observed composition differences between plates and matrices and (2) martensitic transformation in hypothetical alloys with compositions less than those of the original ones by the observed composition differences. The incubation periods experimentally observed should be associated with these two thermal activation processes.

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References

  1. Z. Nishiyama:Martensitic Transformations (Application), Maruzen, Tokyo, 1974, pp. 71–85 (in Japanese).

    Google Scholar 

  2. H.I. Aaronson, W.T. Reynolds, Jr., G.J. Shiflet, and G. Spanos:Metall. Trans. A, 1990, vol. 21A, pp. 1343–80.

    CAS  Google Scholar 

  3. H.I. Aaronson, T. Furuhara, J.M. Rigsbee, W.T. Reynolds, Jr., and M.J. Howe:Metall. Trans. A, 1990, vol. 21A, pp. 2369–2409.

    CAS  Google Scholar 

  4. I. Cornelis and C.M. Wayman:Scripta Metall., 1973, vol. 7, pp. 579–90.

    Article  CAS  Google Scholar 

  5. G.W. Lorimer, G. Cliff, H.I. Aaronson, and K.R. Kinsman:Scripta Metall., 1975, vol. 9, pp. 271–79.

    Article  CAS  Google Scholar 

  6. P. Doig and P.E. Flewitt:Met. Sci., 1983, vol. 17, pp. 601–08.

    Article  CAS  Google Scholar 

  7. M.H. Wu and C.M. Wayman:Proc. Int. Conf. on Martensitic Transformations, August 26-30, Nara, Japan, Japan Institute of Metals, Sendai, 1986, pp. 619–24.

    Google Scholar 

  8. M.H. Wu, B.C. Muddle, and C.M. Wayman:Acta Metall., 1988, vol. 36, pp. 2095–2106.

    Article  CAS  Google Scholar 

  9. Y. Nakata, T. Tadaki, and K. Shimizu:Mater. Trans. Jpn. Inst. Met., 1989, vol. 30, pp. 107–16.

    CAS  Google Scholar 

  10. T. Tadaki, T. Uyeda, and K. Shimizu:Mater. Trans. Jpn. Inst. Met., 1989, vol. 30, pp. 117–26.

    CAS  Google Scholar 

  11. G. Cliff, F. Hasan, G.W. Lorimer, and M. Kikuchi:Metall. Trans. A, 1990, vol. 21A, pp. 831–35.

    CAS  Google Scholar 

  12. K. Takezawa and S. Sato:Metall. Trans. A, 1990, vol. 21A, pp. 1541–45.

    CAS  Google Scholar 

  13. Y. Hamada, M.H. Wu, and C.M. Wayman:Mater. Trans. Jpn. Inst. Met., 1991, vol. 32, pp. 747–56.

    CAS  Google Scholar 

  14. T. Tadaki, J.Q. Cai, and K. Shimizu:Mater. Trans. Jpn. Inst. Met., 1991, vol. 32, pp. 757–65.

    CAS  Google Scholar 

  15. T. Tadaki, J.Q. Cai, K. Shimizu, F.X. Yin, and N.J. Gu:Proc. Int. Conf. on Martensitic Transformations, July 20-24, Monterey, CA, 1992, in press.

  16. A. Kore’eda, T. Ishibashi, K. Shimizu, M. Tomita, C. Kimura, and H. Okano:Mater. Characterizations, 1990, vol. 25, pp. 375–95.

    Article  CAS  Google Scholar 

  17. J.J. Hren, J.I. Goldstein, and D.C. Joy:Introduction to Analytical Electron Microscopy, Plenum Press, New York, NY, 1979, pp. 83–120.

    Google Scholar 

  18. M.H. Wu, J. Perkins, and C.M. Wayman:Acta Metall., 1989, vol. 37, pp. 1821–37.

    Article  CAS  Google Scholar 

  19. Z. Horita, T. Sano, and M. Nemoto:Bull. Jpn. Inst. Met., 1989, vol. 9, pp. 742–52 (in Japanese).

    Google Scholar 

  20. T. Tadaki, M. Takamori, and K. Shimizu:Proc. Int. Conf. on Martensitic Transformations, August 26-30, Nara, Japan, Japan Institute of Metals, Sendai, 1986, pp. 806–11.

    Google Scholar 

  21. T. Tadaki, S. Hamada, and K. Shimizu:Trans. Jpn. Inst. Met., 1977, vol. 18, pp. 135–43.

    CAS  Google Scholar 

  22. T. Tadaki, N. Kondo, T. Kakeshita, and K. Shimizu: Osaka University, Osaka, Japan, unpublished research, 1993.

  23. T. Tadaki, M. Takamori, and K. Shimizu:Trans. Jpn. Inst. Met., 1987, vol. 28, pp. 120–28.

    CAS  Google Scholar 

  24. K. Takezawa, H. Watanabe, and S. Sato:Proc. Int. Symp. on Shape Memory Alloys, SMA-86, September 6-9, Guilin, China, Academic Publisher, Beijing, China, 1986, pp. 344–49.

    Google Scholar 

  25. E. Hornbogen and H. Warlimont:Acta Metall., 1967, vol. 15, pp. 943–51.

    Article  CAS  Google Scholar 

  26. T.Y. Hsu and X.W. Zhou:Acta Metall., 1989, vol. 37, pp. 3095–98.

    Article  CAS  Google Scholar 

  27. Z. Nishiyama:Martensitic Transformation, Academic Press, New York, NY, 1978, pp. 74–106.

    Google Scholar 

  28. T. Tadaki, T. Nagaura, and K. Shimizu:Scripta Metall., 1978, vol. 12, pp. 453–56.

    Article  CAS  Google Scholar 

  29. H.I. Aaronson, J.K. Lee, and K.C Russell:Precipitation Processes in Solids, TMS-AIME, Warrendale, PA, 1977, pp. 31–85.

    Google Scholar 

  30. J.M. Howe and N. Prabhu:Acta Metall. Mater., 1990, vol. 38, pp. 881–87.

    Article  CAS  Google Scholar 

  31. M. Lin, G.B. Olson, and M. Cohen:Metall. Trans. A, 1992, vol. 23A, pp. 2987–98.

    CAS  Google Scholar 

  32. T. Kakeshita, K. Kuroiwa, K. Shimizu, T. Ikeda, A. Yamagishi, and M. Date:Mater. Trans. JIM, 1993, vol. 34, pp. 423–28.

    Google Scholar 

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Authors and Affiliations

  1. The Institute of Scientific and Industrial Research, Osaka University, 567, Osaka, Japan

    T. Tadaki (Associate Professor)

  2. Department of Mechanical Engineering, Kanazawa Institute of Technology, Kanazawa-South, 921, Ishikawa, Japan

    K. Shimizu (Professor)

Authors
  1. T. Tadaki
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  2. K. Shimizu
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Additional information

This article is based on a presentation made at the Pacific Rim Conference on the “Roles of Shear and Diffusion in the Formation of Plate-Shaped Transformation Products,” held December 18–22, 1992, in Kona, Hawaii, under the auspices of ASM INTERNATIONAL’S Phase Transformations Committee.

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Tadaki, T., Shimizu, K. High-resolution analytical electron microscopy study of isothermal plate-shaped products in some β-phase alloys. Metall Mater Trans A 25, 2569–2579 (1994). https://doi.org/10.1007/BF02649210

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