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用电阻法、金相分析、电镜分析、Ｘ射线衍射及拉伸试验等研究了淬火 后中温处理对ＣｕＡｌＮｉＭｎＴｉ形状记忆合金热循环特性及力学行为的影响． 研究结果表明：合金淬火后经６００℃中温处理可产生适量ａ相，ａ相优先在 晶界析出，保温时间延长，则晶内也析出ａ相，控制中温处理时间可以调整 ａ相含量，从而调整相变点；经中温短时处理后，在随后的热循环过程中不 再有ＮｉＡｌ基析出相，从而实现热循环过程中相变点基本稳定；中温处理时， 适量的ａ相析出还可改善断裂机制，显著提高合金的强度及塑性．
The effects of medium temperature after quenching on the thermal cycling characteristics and mechanical behavior of CuAlNiMnTi shape memory alloy were studied by means of electrical resistance, metallographic analysis, electron microscopy, X-ray diffraction and tensile test. The results show that after the quenching of alloy, the proper amount of phase a can be produced by the medium temperature treatment at 600 ℃, the phase a preferentially precipitates at the grain boundary, the phase a precipitates in the crystal after the holding time prolongs, Phase transformation point. After the short-term treatment at medium temperature, NiAl-based precipitates disappeared during the subsequent thermal cycling, so that the phase transition point during the thermal cycling was basically stable. During moderate temperature treatment, the appropriate amount of a phase precipitation could be improved Fracture mechanism, significantly improve the strength and ductility of the alloy.