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报道采用新型SMT 1型形状记忆合金特性综合测试仪对Ti 50 9at%Ni合金在拉伸变形 ,形状记忆回复以及约束应力或约束应变条件下的力学和电阻特性进行同步测试的部分结果 ,并讨论了其内在物理本质。实验结果表明 :拉伸加载过程中的电阻—应变曲线比应力—应变曲线更能揭示应力诱发马氏体相变过程 ,应力 ,应变 ,电阻 ,温度的同步测量是研究形状记忆合金性能和组织结构变化的简便和有效的工具之一。
This paper reports the partial results of the synchronous testing of the mechanical and electrical resistivity of Ti 50 9 at% Ni alloy under the conditions of tensile deformation, shape memory recovery and constrained or constrained strain using a new type of SMT 1 Shape Memory Alloy Tester. Its intrinsic physical essence. The experimental results show that the strain-strain curve during tensile loading can reveal the stress-induced martensitic transformation process better than the stress-strain curve. Simultaneous measurement of stress, strain, resistance and temperature is to study the properties and structure of the shape memory alloy One of the easy and effective tools for change.