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Stress response by the strain-rate change in binary, stoichiometric Ni3AI single crystal

Published online by Cambridge University Press:  15 February 2011

M. Demura  and
T. Hirano
M. Demura
Affiliation:
National Research Institute for Metals, 1–2–1 Sengen, Tsukuba, Ibaraki 305, Japan
T. Hirano
Affiliation:
National Research Institute for Metals, 1–2–1 Sengen, Tsukuba, Ibaraki 305, Japan
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Abstract

The strain-rate dependence of flow stress in single crystals of binary, stoichiometric Ni3Al was studied in the temperature region of the yield stress anomaly. Below 400 K, the steady-state flow stress was found to be independent of strain rate, though it changed temporarily when the strain rate was changed. The strain-rate insensitivity can be explained by assuming that the flow stress is controlled by the multiplication/immobilization of mobile dislocations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 460: Symposium Z – High-Temperature Ordered Intermetallic Alloys VII , 1996 , 549
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

1. Vitek, V. and Sodani, Y., Scr. Metall. Mater., 25, 939 (1991).Google Scholar
2. Hirsch, P. B., Scr. Metall. Mater., 25, 1725 (1991).Google Scholar
3. Mills, M. J. and Chrzan, D. C., Acta Metall. Mater., 40, 3051 (1992).Google Scholar
4. Ezz, S. S. and Hirsch, P. B., Phil. Mag. A, 69, 105 (1994).Google Scholar
5. Takeuchi, S. and Kuramoto, E., Acta Metall., 21, 415 (1973).Google Scholar
6. Umakoshi, Y., Pope, D. P., and Vitek, V., Acta Metali., 32, 449 (1984).Google Scholar
7. Spätig, P., Bonneville, J., and Martin, J. L., Mater. Sei. Eng., A167, 73 (1993).Google Scholar
8. Thornton, P. H., Davies, R. G., and Johnston, T. L., Metall Trans., 1, 207 (1970).Google Scholar
9. Mulford, R. A. and Pope, D. P., Acta Metall., 21, 1375 (1973).Google Scholar
10. Hirano, T. and Mawari, T., Acta Metall. Mater., 41, 1783 (1993).Google Scholar
11. Demura, M. and Hirano, T., Phil. Mag. Let., accepted for publication (1996).Google Scholar
12. Hirano, T., Acta Metall. Mater., 38, 2667 (1990).Google Scholar
13. Hirano, T., Scr. Metall. Mater., 25, 1747 (1991).Google Scholar
14. Mawari, T. and Hirano, T., Intermetallics, 3, 23 (1995).Google Scholar
15. Conrad, H. and Frederick, S., Acta Metall., 10, 1013 (1962).Google Scholar
16. Basinski, Z. S., Phil. Mag., 4, 393 (1959).Google Scholar
17. Pope, D. P. and Ezz, S. S., International Metals Review, 29, 136 (1984).Google Scholar
18. Masahashi, N., Takasugi, T., and Izumi, O., Acta Metall., 36, 1823 (1988).Google Scholar
19. Mishima, Y., Ochiai, S., Yodogawa, M., and Suzuki, T., Trans. JIM, 27, 649 (1986).Google Scholar