Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-16T09:30:27.578Z Has data issue: false hasContentIssue false
  • English
  • Français

Hip Synthesis of Two-Phase MO-TI-SI Alloys

Published online by Cambridge University Press:  01 January 1992

D. S. Schwartz ,
R. J. Lederich  and
D. A. Deuser
D. S. Schwartz
Affiliation:
McDonnell Douglas Aerospace, m/c 111-1041, PO Box 516, St. Louis, MO 63166-0516
R. J. Lederich
Affiliation:
McDonnell Douglas Aerospace, m/c 111-1041, PO Box 516, St. Louis, MO 63166-0516
D. A. Deuser
Affiliation:
McDonnell Douglas Aerospace, m/c 111-1041, PO Box 516, St. Louis, MO 63166-0516
Get access

Abstract

The possibility of producing novel microstructures in MoSi2 materials was examined by HIP reacting MoSi2 and Ti powders at 1400°C/207MPa to produce a two-phase MoSi2-based alloy. The HIP reaction produced MoSi2 + hexagonal (Mo0.42, Ti0.58)5Si3- The (Mo0,42.Ti0.58)5Si3 was composed of 0.5µm diam., equiaxed grains, and the average MoSi2 grain size was reduced by the reaction. Preliminary compression testing showed no loss of strength compared to single-phase MoSi2, and two-phase specimens were compressible to 24% strain without any cracking. The (Mo0.42,Ti058)5Si3 phase appeared to be plastically undeformable even at 1400°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 1075
Copyright
Copyright © Materials Research Society 1995

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

REFERENCES

1. Meschter, P. J. and Schwartz, D. S., JOM 41, no.11 (89) 52–55.Google Scholar
2. Fitzer, E., Schlichting, J., and Schmidt, F. K., High Temp.-High Pres. 2 (70) 553–570.Google Scholar
3. Schlichting, J., High Temp.-High Pres. 10 (78) 241–269.Google Scholar
4. Vasudevan, A. K., Petrovic, J. J., Mat. Sci. Eng. A155 (92) 1–17. Google Scholar
5.e.g. see pp. 75–115 of Mat. Sci. Eng. A155 (92).Google Scholar
6. Villars, P., Calvert, L. D., Pearson's Handbook of Crystallographic Data for Intermetallic Phases. (American Society for Metals, Metals Park, OH, 1985) 2772.Google Scholar
7. Svechnikov, V. N., Kocherzhinsky, Yu. A., Yupko, L. M., Dokl. Akad. Nauk, Ukrain SSR, 6A (72) 566. Google Scholar