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在塑性变形时由母相转变为密排六方晶系h。p马氏体（。一马氏体）的铁基形状记忆合金，有高锰钢和304型奥氏体不锈钢。。一马氏体是在具有低堆垛层错能的合金中形成的相，相变时体积变化很小，在8一马氏体中很难产生滑移变形，所以可能成为具有良好形状记忆特性的合金。为了发
In the plastic deformation from the mother phase into a close hexagonal system h. p martensitic (. A martensite) iron-based shape memory alloy, high manganese steel and 304 austenitic stainless steel. . A martensite is a phase formed in an alloy with a low stacking fault energy and has a small change in volume during phase transformation. It is difficult to produce slip deformation in 8-martensite, so it may be a material having good shape memory properties Alloy. In order to send