【摘要】 本文系统地阐述了Ni2 MnGa合金的晶体结构、马氏体相变行为、相变应变、磁诱导应变及其形状记忆效应机理的研究现状 ,分析了影响Ni2 MnGa合金马氏体相变、应力应变及各物理量的主要因素 ,介绍了Ni2 MnGa合金的制备工艺现状及发展趋势 ,并提出了Ni2 MnGa合金需深入研究的问题。更多还原

【Abstract】 The crystal structure and the characters of the martensitic transition of Ni₂MnGa alloy as well as the develepment of the research on the phase transition strain,the magnetic induction strain and the mechanism of shape memory effect are expounded,and the main effect factories of the martensitic transition and the strain characters as well as the basic physical parameters of the Ni₂MnGa alloy are analyzed.The paper introduced the present situation and development tendency of the preparation technologies of Ni₂MnGa alloy are introduced and the problems,which should be investigated comprehensively and deeply,are put forward更多还原