Electric resistance variation of NiTi shape memory alloy wires in thermomechanical tests:: Experiments and simulation
Electric resistance variation of NiTi shape memory alloy wires in thermomechanical tests:: Experiments and simulation
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DOI：
10.1016/j.msea.2007.02.162
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发表时间：
2008-05-25
期刊：
影响因子：
6.4
通讯作者：
Mahesh, K. K.
中科院分区：
文献类型：
--
作者：
Novak, V.;Sittner, P.;Mahesh, K. K.
通过实验和考虑B2-R-B19‘相变的细观力学模型模拟，研究了表现R相变的NiTi丝在热和力学测试过程中的电阻率演化。由于模拟的力学和电阻率响应与实验得到了合理的吻合，因此通过模型模拟可以根据激活的NiTi丝中发生的多个相变和变形过程的活动来合理地解释表面上奇怪的电阻率行为。(C)2007 Elsevier B.V.保留所有权利。
Evolution of the electrical resistivity during thermal and mechanical tests of NiTi wires showing R-phase transformation was investigated by experiments and micromechanical model simulations considering B2-R-B19' transformations. Since reasonable agreement between the simulated and experimental mechanical and electrical resistivity responses was achieved, the apparently curious behavior of electrical resistivity could be rationalized through the model simulations in terms of the activity of multiple transformation and deformation processes taking place in the activated NiTi wires. (C) 2007 Elsevier B.V. All rights reserved.