Hostname: page-component-586b7cd67f-rdxmf Total loading time: 0 Render date: 2024-11-25T17:22:26.611Z Has data issue: false hasContentIssue false
  • English
  • Français

Short-Range-Ordering and Fe-Clustering in Au-Fe Alloys

Published online by Cambridge University Press:  26 February 2011

Chen-Chia Chou ,
F.-R. Chen  and
C. M. Wayman
Chen-Chia Chou
Affiliation:
University of Illinois at Urbana-Champaign, Dept. of Materials Science and Engineering, Urbana, IL 61801
F.-R. Chen
Affiliation:
Northwestern University, Dept. of Materials Science and Engineering, Evanston, IL 60208
C. M. Wayman
Affiliation:
University of Illinois at Urbana-Champaign, Dept. of Materials Science and Engineering, Urbana, IL 61801
Get access

Abstract

As an “archtypal” spin-glass system, the local atomic arrangement in Au-Fe alloys is still a controversial subject. In the present experiment, Au-Fe alloys with Fe content from 10.7 to 33% were studied as to microstructure evolution, through various transmission electron microscopic techniques. Information derived from aging experiments using real and reciprocal spaces appears to suggest the coexistence of short-range-order and Fe-clusters. At early stages of aging, lobe-like and/or rod-shaped strain contrast images, identified as clusters, were revealed after specimens were further cleaned by an ion-miller. The (1 1/2 0) special point diffuse reflections were prominent in the as-quenched condition and/or early stage aging, and the intensifies decrease gradually as aging proceeds. After a certain period, (1 1/2 0) diffuse reflections disappear but strain contrast images still remain similar. This suggests that the strain contrast images are not related to the (1 1/2 0) diffuse reflections. High resolution electron microscopy was also employed. The results are consistent with the arguments derived from aging experiments.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 205: Symposium F – Kinetics of Phase Transformations , 1990 , 131
Copyright
Copyright © Materials Research Society 1992

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Sarkissian, B. V. B., J. Phys. F: Metal Phys. 11,191 (1981)Google Scholar
2. Whittle, G. L. and Campbell, S.J., J. Phys.F: Metal Phys. 15,693 (1985)Google Scholar
3. Dartyge, E., Bouchait, H., and Monod, P., Phys. Rev. B. 25, 6995 (1982)Google Scholar
4. Violet, C. E. and Borg, R. J., Phys. Rev. Lett. 51, 1073 (1983)CrossRefGoogle Scholar
5. Monod, P. and Campbell, I. A., Phys. Rev. Lett. 52, 2096 (1984)Google Scholar
6. Brand, R. A. and Keune, W., Phys. Rev. Lett. 52, 2097 (1984).CrossRefGoogle Scholar
7. Violet, C. E. and Borg, R. J., Phys. Rev. Lett. 52, 2098 (1984).Google Scholar
8. Stobbs, W. M., Phys. Stat. Solid. A, 91, 69 (1985).CrossRefGoogle Scholar
9. Ju, C. P., Waymwn, C. M. and Chen, H., Scr. Metall. 21, 59 (1987).CrossRefGoogle Scholar
10. Chou, C. C., Chen, H. and Wayman, C. M., Mat. Sci. and Eng. A123, 21 (1990).CrossRefGoogle Scholar
11. Cable, J. W., Parette, G. and Tsunoda, Y., Phys.Rev. B36, 8467 (1987).CrossRefGoogle Scholar
12. Yoshida, Y., Langmayr, F., Fratze, P. and Vogl, G., Phys. Rev. B 39, 6395 (1989)Google Scholar
13. Chen, H., Anderson, J., Ohshima, K., Okajima, H. and Harada, J, Phys. Rev. B42, 2342 (1990).Google Scholar
14. Chou, C.C. and Wayman, C. M., submitted to Mater. Sci. Engr.(1990).Google Scholar
15. Otsuka, K., Kubo, H. and Wayman, C. M., Met. Trans. 12A, 595 (1981).Google Scholar
16. Ashby, M. F. and Brown, L. M., Phil. Mag. 8, 1083 and 1649 (1963).Google Scholar
17. Chevalier, J. P. and Stobbs, W. M., Acta Metall. 27, 285 and 1197 (1979).Google Scholar
18. Borg, R. J., Dienes, G. J. and Lyles, R.L., Radiation Effects 33, 105 (1977).CrossRefGoogle Scholar
19. Chou, C.C. and Wayman, C. M., submitted to Mater. Charact.(1990).Google Scholar
20. Fontaine, D. De, Solid St. Phys. 34, 73 (1979).Google Scholar
21. Phillips, V. A., Acta Met. 21, 219 (1973); 23, 751 (1975).Google Scholar
22. Sato, T. and Takahashi, T., Trans. JIM 24(6), 386 (1983).Google Scholar
23. Yoshida, H., Hashimoto, H., Yokota, Y. and Ajika, N., Trans.JIM 24(6), 378 (1983).Google Scholar
24. Tanaka, N. and Cowley, J. M., Acta Cryst. A43, 337 (1987)Google Scholar
25. Howe, J. M., Basile, D. P., Prabhu, N. and Hatalis, M.K., Acta Cryst. A44, 449(1988).CrossRefGoogle Scholar