Intrinsic Micromechanism of Multi-step Structural Transformation in MnNi Shape Memory Alloys |
| |
| Authors: | Shushan Cui Jianfeng Wan Yonghua Rong Jihua Zhang |
| |
| Affiliation: | 1.School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai,P.R. China |
| |
| Abstract: | Simulation of the multi-step transformation of cubic matrix → multi-variant tetragonal domain → orthorhombic domain was realized by phase-field method. The intrinsic micromechanism of the second-step transformation in MnNi alloys was studied. It was found that the orthorhombic variant originated from the tetragonal variant with similar orientation, and bar-shaped orthorhombic phase firstly occurred around the interface of twinning bands. The second-step transformation resulted in localized variation of internal stress. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
