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Fabrication of A CU-AL-NI-MN Shape Memory Alloy

Published online by Cambridge University Press:  25 February 2011

Ming H. Wu ,
S.L. Semiatin  and
L.M. Schetky
Ming H. Wu
Affiliation:
Memry Technologies, Inc., 57 Commerce Drive, Brookfield, CT 06804
S.L. Semiatin
Affiliation:
EPRI Center for Materials Fabrication, 505 King Avenue, Columbus, OH 43201
L.M. Schetky
Affiliation:
Memry Technologies, Inc., 57 Commerce Drive, Brookfield, CT 06804
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Abstract

In the development of an optimized hot rolling process for a Cu-Al-Ni-Mn sheet alloy, the effects of the recrystallization texture on ductility and shape memory recovery were examined. The texture of samples rolled in the β phase region (750 °C) was characterized by martensitic (128) poles along the normal direction and (0018) poles inclined 60° from the normal to the rolling direction. The texture of samples rolled in the α+β region (600 °C) was slightly stronger but less symmetric. The shape memory recovery was more or less isotropic in the rolling plane, independent of the rolling conditions. However, improved bend ductility of 9.5% was observed along the rolling direction in specimens rolled at 750 °C with a reduction per pass of 27%.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 246: Symposium M – Shape-Memory Materials and Phenomena--Fundamental Aspects and Applications , 1991 , 343
Copyright
Copyright © Materials Research Society 1992

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