NiTi形状记忆合金具有优良的耐磨和耐腐蚀性能,在从高温相到低温相(单斜)的热弹性马氏体转变,或是从高温相到中间相再向低温相转变中,会产生伪弹性和形状记忆效果。从高温相到低温相的转变会出现较大的形状变化(约7%),而从高温相向中间相转变则仅有很小的形状变化(约0.8%),因此 NiTi shape memory alloys have excellent wear and corrosion resistance. They occur in the transition from high temperature phase to low temperature phase (monoclinic) thermoelastic martensite or from high temperature phase to intermediate phase to low temperature phase Pseudo-elasticity and shape memory effect. A large change in shape (about 7%) occurs from a transition from a high temperature phase to a low temperature phase, while a small change in shape (about 0.8%) from a high temperature phase to an intermediate phase transition