通过电镜对ＣｕＺｎＡｌ形状记忆合金在平衡状态下的相结构进行了分析，发现存 在有α，β和γ三相，其中α相和β相为大块，γ相量极少，仅在电镜下才能 观察到。它们的位向关系是［１１１］β／／［１１０］α，（１１０）β／／（１１１）α；［１００］β／／［１００］γ，(００１）β／／（００１）γ。 The phase structure of CuZnAl shape memory alloy under the equilibrium state was analyzed by means of electron microscopy and found that there are three phases of α, β and γ, of which the α phase and the β phase are bulk, the γ phase is very small, only under the electron microscope observed. Their orientation is [111] β // [110] α, (110) β // (111) α; [100] β // [100] γ, (001) β // (001) γ.