不同方式预应变TiNi合金丝的马氏体逆相变温度

1.石油大学材料科学与工程系,北京,102249

2.石油大学材料科学与工程系,北京,102249

3.石油大学材料科学与工程系,北京,102249

4.石油大学材料科学与工程系,北京,102249

基金项目: 国家自然科学基金(50071037)

Reverse Martensitic Transformation Temperatures of TiNi Wires Prestrained under Different Methods

对恒应力约束下降温预应变和室温拉伸预应变TiNi形状记忆合金丝的马氏体逆相变行为进行研究.结果表明,随着预应变的增加,二者的马氏体逆相变温度都上升,应变回复率都下降;但是在相同预应变下,前者的马氏体逆相变温度低于后者,后者的应变回复率却高于前者.

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