Crystallography of FCC-FCT martensitic transition in MnFeCu antiferromagnetic shape memory alloy

被引：0

作者：

Wang, Lin ^{[1
]}

Cui, Yan-Guang ^{[1
]}

Wan, Jian-Feng ^{[1
]}

Zhang, Ji-Hua ^{[1
]}

Rong, Yong-Hua ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai,200240, China

来源：

Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2015年 / 25卷 / 03期

关键词：

Lattice theory - Martensitic transformations - Shape memory effect - Iron alloys - Ternary alloys - Antiferromagnetism - Copper alloys;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Shape memory effect in MnFeCu antiferromagnetic alloy comes from the FCC-FCT martensitic transformation (MT). Compared with many other alloys, MnFeCu alloys have small lattice distortion. The infinitesimal deformation (ID) approach theory was applied to study the crystallography of FCC-FCT MT with the twinning shear as the lattice invariant shear in the MnFeCu alloy. Simple analytical solutions were derived, which were in good agreement with the experiment results. Compared the calculated results with those obtained from the classical WLR theory, it was found that the former are the approximation by neglecting the higher-order terms of the latter. In the condition of small lattice distortion, they almost have the same accuracy. Therefore, for the alloys with small lattice distortion, ID approach theory can be applied to predicate the crystallography conveniently, which can derive simple analytical solutions with high accuracy. ©, 2015, Central South University of Technology. All right reserved.

引用

页码：720 / 726