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A Comparative Study of Short Range Order in Fe-Cr and Fe-V Alloys Around Equiatomic Composition

Published online by Cambridge University Press:  26 February 2011

P.E.A. Turchi ,
M. Sluiter  and
G. M. Stocks
P.E.A. Turchi
Affiliation:
LLNL, Condensed Matter Division, P.O. Box 808, Livermore, CA 94550
M. Sluiter
Affiliation:
LLNL, Condensed Matter Division, P.O. Box 808, Livermore, CA 94550
G. M. Stocks
Affiliation:
ORNL, Metals and Ceramics Division, P.O. Box 2008, Oak Ridge, TN 37831–6114
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Abstract

Configurational energies have been calculated for equiatomic Fe-Cr and Fe-V alloys possessing the high temperature bcc crystalline structure, within a first principles electronic band structure approach. In agreement with experimental facts, a tendency towards order, with a B2 ordered structure of CsCI type, is found for FeV whereas phase separation characterizes FeCr. These results suggest that the nature of short range order in the high temperature bcc solid solution is not the primary driving force for describing the structural transformation from bcc to sigma which takes place in both alloys upon decreasing temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 213: Symposium Q – High-Temperature Ordered Intermetallic Alloys IV , 1990 , 75
Copyright
Copyright © Materials Research Society 1991

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References

REFERENCES

[1] “Binary Alloy Phase Diagrams,” ed. by Massalski, T. B. (ASM, Metals Park), vols. 1 and 2, 1986.Google Scholar
[2] Ducastelle, F. and Gautier, F., J. Phys, F 6, 2039, 1976.Google Scholar
[3] Turchi, P.E.A., Stocks, G. M., Butler, W. H., Nicholson, D. M. and Gonis, A., Phys. Rev., B 37, 5982, 1988.Google Scholar
[4] Finel, A., These de Doctorat d'Etat es Sciences Physiques, University Paris VI, 1987 (unpublished).Google Scholar
[5] Sluiter, M. and Turchi, P.E.A., “Theoretical Investigation of Phase Stability in Non-Magnetic Fe-V Substitutional Alloys,” to be published in these Proceedings.Google Scholar
[6] Turchi, P.E.A., Sluiter, M., Pinski, F. J. and Johnson, D. D., to be published in Mat. Res. Soc. Symp. Proc., vol. 186, 1990.CrossRefGoogle Scholar
[7] Hennion, M., J. Phys., F 13, 2351, 1983.Google Scholar
[8] Turchi, P.E.A., Sluiter, M. and de Fontaine, D., Phys. Rev., B 36, 3161, 1987.Google Scholar
[9] Turchi, P.E.A., Mater. Sci. and Eng., A 127, 145, 1990.Google Scholar
[10] Finel, A, Proc. Conf. on Alloy Phase Stability in NATO Adv. Study Inst. Ser. ed. by Stocks, G. M. and Gonis, A. (Kluwer, Dordrecht), 269, 1989.Google Scholar
[11] Naohara, T. and Shinohara, K., Trans. of the Jap. Inst. of Metals, 28, 273, 1987.Google Scholar
[12] Seki, J., Hagiwara, M. and Suzuki, T., J. Mater. Sci., 14, 2404, 1979.Google Scholar
[13] Andersson, J.-O. and Sundman, Bo, Calphad, 11, 83, 1987 and references therein.CrossRefGoogle Scholar
[14] Sluiter, M. and Turchi, P.E.A., to be published in Mat. Res. Soc. Symp. proc., vol. 186, 1990.Google Scholar
[15] Reinhard, L.T. and Moss, S. C., private communication.Google Scholar