DEFORMATION OF CuZnAl SHAPE MEMORY ALLOYS IN MARTENSITIC STATE
Cu—Zn—Al形状记忆合金在马氏体状态的塑性变形

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 state at ambient temperature, and the A_f temperature of the third one is far below the ambient temperature. The effect of deformation of alloys in martensitic state on the 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 been discussed.