Thermodynamic Analysis on Relation Between T0 and σM in a Ti44Ni47Nb9 Shape Memory Alloy

材料科学技术（英文）, 2002, 18(6): 538-540.

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

2.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

3.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

4.Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China

5.State Key Laboratory of Nuclear Flue and Materials, Nuclear Power Institute of China, Chengdu 610041, China

6.State Key Laboratory of Nuclear Flue and Materials, Nuclear Power Institute of China, Chengdu 610041, China

基金项目: the State Key Laboratory of Nuclear Flue and Materials Foundation for support

Thermodynamic Analysis on Relation Between T0 and σM in a Ti44Ni47Nb9 Shape Memory Alloy

Keywords： Ti44Ni47Nb9 shape memory alloy

The effect of heat treatment on martensitic transformation behavior has been investigated in Ti44Ni47Nb9 alloy.The relation between transformation temperatures and critical stress of stress induced martensitic transformation is interpreted in terms of thermodynamic theory. It is shown that the decrease in transformation temperature in specimens of slow cooling rate or low temperature aging after solution heat treatment results from the changes of Ni/Ti ratio in the matrix. The increase of critical stress of stress induced martensitic transformation is a consequence of the decrease of transformation temperatures.

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Thermodynamic Analysis on Relation Between T0 and σM in a Ti44Ni47Nb9 Shape Memory Alloy

参考文献