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Deformation Structures in Oriented NiAl and CoAl Single Crystals Deformed at Elevated Temperature

Published online by Cambridge University Press:  01 January 1992

Y. Zhang ,
S.C. Tonn  and
M.A. Crimp
Y. Zhang
Affiliation:
Department of Materials Science and Mechanics, Michigan State University, East Lansing, MI 48824-1226
S.C. Tonn
Affiliation:
Department of Materials Science and Mechanics, Michigan State University, East Lansing, MI 48824-1226
M.A. Crimp
Affiliation:
Department of Materials Science and Mechanics, Michigan State University, East Lansing, MI 48824-1226
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Abstract

The deformation characteristics of the B2 intermetallic alloys NiAl and CoAl have been examined using single crystals deformed at 673 K in the <110> orientation. Slip trace analysis and transmission electron microscopy was used to characterize the deformation process. While many aspects of the deformation are similar, some distinct differences were observed. All of the alloys were found to deform by <001> slip. NiAl was found to deform by slip on a combination of {110} and {100} slip planes with the predominant slip plane being a function of alloy stoichiometry. In contrast, CoAl was found to deform by slip only on {100} planes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 379
Copyright
Copyright © Materials Research Society 1995

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