中文摘要：

NiTi形状记忆合金具有比其它同类合金更优良的力学性能、形状记忆效应、超弹性、阻尼特性和生物相容性等特点，广泛应用于工程、民用和医学领域。综述了NiTi形状记忆合金疲劳行为的研究现状；对其疲劳行为及其机制的研究，有助于进一步提高NiTi形状记忆合金的性能并延长它的寿命。

英文摘要：

NiTi shape memory alloy（SMA） is now being widely used in engineering, civil and medical fields due to their excellent mechanical property, shape memory effect, superelasticity, damping property and biocompatibility compared with other normal alloys. In this paper, the current research of the fatigue of NiTi SMA is introduced. With the research of the fatigue of NiTi based SMA, it is hopeful to improve the performance and prolong the life of NiTi SMA in future application.