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Alloys based on NiAl for High Temperature Applications

Published online by Cambridge University Press:  21 February 2011

K. Vedula ,
V. Pathare ,
I. Aslanidis  and
R. H. Titran
K. Vedula
Affiliation:
Department of Metallurgy and Materials Science, Case Western Reserve University, Cleveland, Ohio
V. Pathare
Affiliation:
Department of Metallurgy and Materials Science, Case Western Reserve University, Cleveland, Ohio
I. Aslanidis
Affiliation:
Department of Metallurgy and Materials Science, Case Western Reserve University, Cleveland, Ohio
R. H. Titran
Affiliation:
NASA Lewis Research Center, Cleveland, Ohio
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Abstract

This paper presents some of the results obtained in an on-going study of NiAl alloys for potential high temperature applications. Alloys were prepared by powder metallurgy techniques. Flow stress values at slow strain rates and high temperatures were measured. Some promising ternary alloying additions (Hf, Ta and Nb) have been identified. The mechanism of strengthening in alloys containing these additions appears to be a form of particle dislocation interaction. Interesting effects of grain size and stoichiometry in binary alloys are also presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 39: Symposium G – High-Temperature Ordered Intermetallic Alloys I , 1984 , 411
Copyright
Copyright © Materials Research Society 1985

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References

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