DEFORMATION OF CuZnAl SHAPE MEMORY ALLOYS IN MARTENSITIC STATE

Acta Metall Sin

1989, Vol. 25

Issue (3): 23-28 DOI:

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DEFORMATION OF CuZnAl SHAPE MEMORY ALLOYS IN MARTENSITIC STATE

ZHANG Yi;E. HORNBOGEN Shanghai Institute of Iron and Steel Research Institute for Materials; Ruhr-University Bochum; F. R. G.

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ZHANG Yi;E. HORNBOGEN Shanghai Institute of Iron and Steel Research Institute for Materials; Ruhr-University Bochum; F. R. G.. DEFORMATION OF CuZnAl SHAPE MEMORY ALLOYS IN MARTENSITIC STATE. Acta Metall Sin, 1989, 25(3): 23-28.

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Abstract Plastic deformation of three CuZnAl shape memory alloys in martensi-tic state was investigated by means of optical and electron metallography, dilatome-try and electric resistivity determination. Two of the alloys are in martensitic stateat ambient temperature, and the A_f temperature of the third one is far below theambient temperature. The effect of deformation of alloys in martensitic state onthe course and temperature of transformation as well as the hysteresis of transfor-mation cycles has been analyzed and the "effect of the first cycle" has also beendiscussed.

Key words: shape memory alloy deformation martensitic transformation

Received: 18 March 1989

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1989/V25/I3/23

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