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1300 K Compressive Properties of Directionally Solidified Ni-33Al-33Cr-1Mo

Published online by Cambridge University Press:  21 March 2011

J. Daniel Whittenberger ,
S.V. Raj  and
Ivan. E. Locci
J. Daniel Whittenberger
Affiliation:
NASA-Glenn Research Center, Cleveland, OH 44135, [email protected]
S.V. Raj
Affiliation:
NASA-Glenn Research Center, Cleveland, OH 44135, [email protected]
Ivan. E. Locci
Affiliation:
Case Western Reserve University at the NASA-Glenn Research Center, Cleveland, OH 44135
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Abstract

The Ni-33Al-33Cr-1Mo eutectic has been directionally solidified by a modified Bridgeman technique at growth rates ranging from 7.6 to 508 mm/h to produce grain/cellular microstructures containing alternating plates of NiAl and Cr alloyed with Mo. The grains had sharp boundaries for slower growth rates (≤ 12.7 mm/h), while faster growth rates (≥ 25.4 mm/h) lead to cells bounded by intercellular regions. Compressive testing at 1300 K indicated that alloys DS'ed at rates between 25.4 to 254 mm/h possessed the best strengths which exceed that for the as-cast alloy.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 646 , 2000 , N6.9.1
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1. Walter, J. L. and Cline, H. E., Metall. Trans., 1 (1970) 1221–1229.10.1007/BF02900234Google Scholar
2. Johnson, D.R., Chen, X.F., Oliver, B.F., Noebe, R.D. and Whittenberger, J.D.. Intermetallics 3 (1995) 99–113.10.1016/0966-9795(95)92674-OGoogle Scholar
3. Yang, J. M., Jeng, S. M., Bain, K. and Amato, R. A., Acta Mater., 45 (1997) 295–305.Google Scholar
4. Whittenberger, J.D., Raj, S.V., Locci, I.E. and Salem, J.A.. Intermetallics 7 (1999) 1159–1168.10.1016/S0966-9795(99)00023-0Google Scholar
5. Whittenberger, J.D., Noebe, R.D., Johnson, D.R. and Oliver, B.F.. Intermetallics 5 (1997) 173–184.10.1016/S0966-9795(96)00078-7Google Scholar
6. Raj, S. V., Locci, I. E. and Whittenberger, J. D., Creep Behavior of Advanced Materials for the 21st Century (edited by Mishra, R. S., Mukherjee, A. K. and Linga Murty, K.), TMS, Warrendale PA, 1999, pp. 295–310.Google Scholar
7. Raj, S.V. and Locci, I.E., “Microstructural Characterization of a Directionally Solidified Ni-33Al-31Cr-3Mo Eutectic Alloy as a fuction of Withdrawal Rate” submitted for publication.Google Scholar
8. Cline, H. E., Walter, J. L., Lifshin, E. and Russell, R. R., Metall. Trans., 2 (1971) 189–194.10.1007/BF02662656Google Scholar