利用嵌入原子类型势函数，通过分子动力学模拟方法研究了裂纹对马氏体相变的影响.裂纹尖端的应变区未能诱发马氏体形核，而且妨碍了热诱发马氏体的长大在外加拉应力作用下，应力诱发马氏作从裂纹尖端形核后，先形成蝶状马氏体；随后系统中上部也发生了马氏体形核；不同取向的马氏体在长大过程中逐渐转化和合并分析了应变的变化特点，探讨了相变的微观机理 The effect of the crack on martensitic transformation was studied by molecular dynamics simulation using the potential function of embedded atomic type. The strain zone at the crack tip failed to induce martensite nucleation and hindered the growth of thermally induced martensite Under the action of tensile stress, the stress-induced Mach number forms nuclei of butterfly-like martensite after nucleation at the tip of the crack, followed by the martensite nucleation in the upper part of the system. The martensite with different orientations gradually grows up Transformation and merger analysis of the characteristics of strain changes, discussed the micro-mechanism of phase transition