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Microstructures and Mechanical Properties of NiAl+Mo In-Situ Eutectic Composites

Published online by Cambridge University Press:  21 February 2011

P. R. Subramanian ,
M. G. Mendiratta ,
D. B. Miracle  and
D. M. Dimiduk
P. R. Subramanian
Affiliation:
Universal Energy Systems, Inc., Dayton, OH 45432–1894
M. G. Mendiratta
Affiliation:
Universal Energy Systems, Inc., Dayton, OH 45432–1894
D. B. Miracle
Affiliation:
WRDC/MLLM, Wright-Patterson AFB, OH 45433–6533
D. M. Dimiduk
Affiliation:
WRDC/MLLM, Wright-Patterson AFB, OH 45433–6533
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Abstract

The quasibinary NiAI-Mo system exhibits a large two-phase field between NiAl and the terminal (Mo) solid solution, and offers the potential for producing in-situ eutectic composites for high-temperature structural applications. The phase stability of this composite system was experimentally evaluated, following long-term exposures at elevated temperatures. Bend strengths as a function of temperature and room-temperature fracture toughness data are presented for selected NiA1-Mo alloys, together with results from fractography observations.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 194: Symposium R – Intermetallic Matrix Composites I , 1990 , 147
Copyright
Copyright © Materials Research Society 1990

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