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A Preliminary Investigation of the Cr3Si-Mo Pseudo-Binary Phase Diagram

Published online by Cambridge University Press:  22 February 2011

R. M. Dickerson ,
S. V. Raj  and
I.E. Locci
R. M. Dickerson
Affiliation:
Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106
S. V. Raj
Affiliation:
NASA Lewis Research Center, 21000 Brookpark Rd., Cleveland, OH 44135
I.E. Locci
Affiliation:
Case Western Reserve University, 10900 Euclid Ave., Cleveland, OH 44106
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Abstract

An investigation was undertaken to study the phase relations in Cr3Si alloyed with Mo varying from 10 to 83.5 wt. % of the material. Specimens were prepared from arc-melted buttons that were subsequently heat treated at 1673 K for 200 h and air quenched to room temperature to preserve the high temperature microstructures. Alloys containing more than 20 wt. % Mo were primarily two-phase materials of M3Si and M5Si3, where M is (Cr,Mo). Three alloys contained less than 5 % of a third phase, which also had the M5Si3 crystal structure. Differential thermal analysis (DTA) was performed on several specimens at temperatures up to 2073 K in order to determine a solidus curve for the M3Si phase. Since only one DTA peak was observed in each alloy, the M5Si3 phase must melt above 2073 K, the maximum temperature examined. A preliminary pseudo-binary phase diagram for (Cr,Mo)3Si and a portion of the 1673 K isothermal section of the Cr-Mo-Si ternary phase diagram are presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 949
Copyright
Copyright © Materials Research Society 1995

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References

1. Raj, S.V., Mat. Sci. and Engr., in press.Google Scholar
2. Stang, C.S. and Pope, D.P., in High Temperature Ordered Intermetallic Alloys IV, Vol. 213, edited by Johnson, L.A., Pope, D.P., and Stiegler, J.O. (Materials Research Society, Pittsburgh, PA, 1991) p. 745.Google Scholar
3. Anton, D.L. and Shah, D.M., in Proceedings of International Symposium on Intermatallic Compounds - Structure and Mechanical Properties (JIMIS-6), edited by Izumi, O. (The Japan Institute of Metals, Sendai, Japan, 1991) p. 379.Google Scholar
4. Shah, D.M. and Anton, D.L., Mat. Sci. and Engr., A 153 402 (1992).Google Scholar
5. Shah, D.M., Berczik, D., and Anton, D.L., Mat. Sci. and Engr., A 155 45 (1992).Google Scholar
6. Shah, D.M., in Superalloys 1992, edited by Antolvich, S.D., Strusrud, R.W., Mackay, R.A., Anton, D.L., Khan, T., Kissinger, R.D., and Klarstrom, D.L., (The Minerals, Metals, and Materials Society, Warrendale, PA, 1992) p. 409 Google Scholar
7. Aitken, E., in Intermetallic Compounds, edited by Westbrook, J.H. (Robert E. Krieger, Huntington, NY, 1977) p. 491.Google Scholar
8. Raj, S.V., Locci, I.E., and Dickerson, R.M. (Unpublished work).Google Scholar