Study of the thermal physical properties of Ti47Ni44Nb9 wide hysteresis shape memory alloy

被引：17

作者：

He, Xiang-Ming ^{[1
]}

Zhao, Long-Zhi

Zhang, Shu-Fang

Duo, Shu-Wang

Zhang, Rong-Fa

机构：

[1] Jiangxi Sci & Technol Normal Univ, Jiangxi Key Lab Mat Surface Engn, Nanchang 330013, Peoples R China

[2] E China Jiaotong Univ, Sch Mech & Elect Engn, Nanchang 330013, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2006年 / 441卷 / 1-2期

关键词：

shape memory alloy; Ti-Ni-Nb alloy; thermal expansion; PSEUDOELASTICITY; TRANSFORMATION; DEFORMATION;

D O I：

10.1016/j.msea.2006.08.016

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Dilatation characteristics of Ti44Ni47Nb9 wide hysteresis shape memory alloys were measured in the temperature range of -60 to 350 degrees C. The coefficient of thermal expansion (CTE) undergoes obvious variations when a phase transformation occurs in the transformation temperature range. The results show the average coefficient of thermal expansion of Ni-Ti-Nb alloy is about 11.4 x 10(-6) degrees C-1 in the temperature range of 25-350 degrees C. And the heat capacity ratio, thermal diffusion ratio and coefficient of heat conductivity in the temperature range of room temperature to 400 degrees C of Ti47Ni44Nb9 wide hysteresis shape memory alloys were also measured and analyzed. It is found that the heat capacity ratio, thermal diffusion ratio and coefficient of heat conductivity in function of the temperature curves are similar and their variation trends are also similar in the tested temperature range, which is increased with increasing of the temperature. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：167 / 169

页数：3

共 13 条

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