Hostname: page-component-7b7567c8c-7pwfn Total loading time: 0 Render date: 2026-11-14T06:18:02.256Z Has data issue: false hasContentIssue false
  • English
  • Français

Intermetallic/Metallic Polyphase In-Situ Composites

Published online by Cambridge University Press:  15 February 2011

D. R. Johnson,
S. M. Joslin,
B. F. Oliver,
R. D. Noebe and
J. D. Whittenberger
D. R. Johnson
Affiliation:
The University of Tennessee, Knoxville, TN 37996-2200 Materials Science and Engineering Dept.
S. M. Joslin
Affiliation:
The University of Tennessee, Knoxville, TN 37996-2200 Materials Science and Engineering Dept.
B. F. Oliver
Affiliation:
The University of Tennessee, Knoxville, TN 37996-2200 Materials Science and Engineering Dept.
R. D. Noebe
Affiliation:
NASA-Lewis Research Center, Cleveland, OH 44135
J. D. Whittenberger
Affiliation:
NASA-Lewis Research Center, Cleveland, OH 44135
Get access

Abstract

To evaluate various in-situ reinforcement schemes, a computer controlled containerless directional solidification system has been used to produce NiAl-based polyphase composites containing up to two intermetallic phases and at least one ductile phase. Systems evaluated include Ni-Al-Cr, Ni-Al-Mo, Ni-Al-V ternary systems that form NiAl/α-refractory metal eutectics and a three phase eutectic in the Ni-Al-Cr-Nb system. Initial screening of these in-situ composites has included morphological characterization, four point bend testing, temperature dependent yield strength evaluation and compressive creep testing. Occasional growth defects termed “banding” currently interrupt the continuity of these composite structures and limit the attainment of optimum properties. However, both the creep strength and toughness of NiAl were improved by in-situ reinforcement.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 273: Symposium Q – Intermetallic Matrix Composites II , 1992, 87
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.)

Article purchase

Temporarily unavailable

References

REFERENCES

1. Walter, J.L. and Cline, H.E., Metall Trans 4, 33–38 (1973).CrossRefGoogle Scholar
2. Pellegrini, P.W. and Hutta, J.J., J of Crys Growth 42, 536–539 (1977).Google Scholar
3. Raj, S.V., Noebe, R.D. and Bowman, R., Scripta Metall 23, 2049–2054 (1989)Google Scholar
4. Reviere, R.D., Oliver, B.F., and Bruns, D.D., Mat & Mfg Proc, 4(1), 103–131 (1989).CrossRefGoogle Scholar
5. Beer, F.P. and Johnston, E.R., Mechanics of Materials, (McGraw-Hill Book Co., St.Louis, 1981), P. 438.Google Scholar
6. Brown, W.F. and Srawley, J.E., Plane Strain Crack Toughness Testing of High Strenqth Metallic Materials, ASTM Special Publication No. 410 (ASTM, Philadelphia, PA) pp. 13–14.Google Scholar
7. Whittenberger, J. Daniel, Reviere, R., Noebe, R.D., Oliver, B. F., Scripta Metall et Mater 26, 987–992 (1992).Google Scholar
8. Quessinet, J.M., Girol, J., and Naslain, R., in Conference on In Situ Composites-III, edited by. J.L., Walter, M.F., Gigliotti, B.F., Oliver, and H., Bibring (Ginn Custom Publishing, Lexington, Mass. 1979), pp. 78–85.Google Scholar
9. Subramanian, P.R., Mendiratta, M.G., Miracle, D.B. and Dimiduk, D.M. in Intermetallic Matrix Composites. edited by D.L., Anton et al. (MRS Symp. Proc. 194, Pittsburgh, PA 1990) pp. 147–352 Google Scholar
10. Chang, K-M, Darolia, R., and Lipsitt, H. in High Temperature Oredered Intermetallic Alloys-IV, eds. L.A., Johnson et al. (MRS Symp. Proc. 213, Boston, Mass. 1991)597–602.Google Scholar
11. Cline, Harvey E. and Walter, John L., Metall Trans 1, 2907–2917 (1970)Google Scholar