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Behavio of Supeaplastically Extruded Cu-26wt%Zn–3.5wt%Al Shape Memory Alloy

Published online by Cambridge University Press:  16 February 2011

Zheng Zhengyt ,
Zhcng Weijian ,
Lin Fuzeng  and
Chew Yingsheng
Zheng Zhengyt
Affiliation:
Sowth China University of Technology, Guangzhou 51641, P.R.China.
Zhcng Weijian
Affiliation:
Sowth China University of Technology, Guangzhou 51641, P.R.China.
Lin Fuzeng
Affiliation:
Sowth China University of Technology, Guangzhou 51641, P.R.China.
Chew Yingsheng
Affiliation:
Sowth China University of Technology, Guangzhou 51641, P.R.China.
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Abstract

The influence of superplastic extrusion on the microstructures and the shape memory effect of the Cu-Zn-Al shape memory alloys has been investigated. The shape memory alloy Cu-26%wt%Zn-3.5wt%Al is superplastio with an index of strain rate sensitivity n = 0.48 at 600°C, at a strain of . After extrusion under the superplastio condition the miorostruotures are improved and no cavities are observed. The superplastically extruded specimens of this alloy were heat-treated to obtain the shape memory effect. These specimens indicate that no deterioration of shape memory effect of the alloy is induced by the superplastio extrusion and the shape memory effect of the alloy is somewhat improved.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 196: Symposium T – Superplasticity in Metals, Ceramics, and Intermetallics , 1990 , 279
Copyright
Copyright © Materials Research Society 1990

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References

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