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Microstructural Characteristics and Shape Memory Effect of Rapidly Quenched Cu-Al-Ni-Cr Alloy

Published online by Cambridge University Press:  25 February 2011

Horng-Show Koo ,
Hsing Chen  and
Fu-Hsing Chen
Horng-Show Koo
Affiliation:
Materials Research Laboratories, Industrial Technology Research Institute, Hsinchu, 31015, Taiwan, R.O.C.
Hsing Chen
Affiliation:
Materials Research Laboratories, Industrial Technology Research Institute, Hsinchu, 31015, Taiwan, R.O.C.
Fu-Hsing Chen
Affiliation:
Kimaxin Corporation, 28, Dingan, Erhlun, 64902, Yunlin, Taiwan, R.O.C.
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Abstract

CuAlNiCr shape memory alloy ribbons with thickness ranging from 65 to 60 pm and about 15–20 mm width have been produced by melt-spinnig technique. Finer grain and homogenous columnar structure could be examined. Transformation temperatures and grain size of CuAlNiCr alloy increase with increasing heat treatment time. The reversible color change phenomena( red copper color=bronze color ) associated with phase transformation in alloy ribbons was also observed. Microstructural and transformation characteristics of rapidly quenched CuAlNiCr alloys were observed by x-ray diffraction, optical microscope, four-probe electrical resistivity method, scanning and transmission microscope.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 246: Symposium M – Shape-Memory Materials and Phenomena--Fundamental Aspects and Applications , 1991 , 201
Copyright
Copyright © Materials Research Society 1992

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