|
|||||
|
|
Internal friction behaviors of Ni-Mn-In magnetic shape memory alloy with two-step structural transformation |
|
| Authors: | Zhen-ni Zhou Liang Yang Jun-ge Wang Tianfan Jin Yujin Huang Jun Li Qiaodan Hu and Jian-guo Li |
| Institution: | School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China,School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China,School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China,School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China,School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China,Collaborative Innovation Center for Advanced Ship and deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China,School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China and School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China |
| Abstract: | The internal friction (IF) behaviors of dual-phase Ni52Mn32In16 alloy with two-step structural transformation were investigated by dynamic mechanical analyzer. The IF peak for the martensite transformation (MT) is an asymmetric shoulder rather than those sharp peaks for other shape memory alloys. The intermartensitic transformation (IMT) peak has the maximum IF value. As the heating rate increases, the height of the IMT peak increases and its position is shifted to higher temperatures. In comparison with the IMT peak, the MT peak is independent on the heating rate. The starting temperatures of the IMT peak are strongly dependent on frequency, while the MT peak is weakly dependent. Meanwhile, the heights of both the MT and IMT peak rapidly decrease with increasing the frequency. This work also throws new light on their structural transformation mechanisms. |
| Keywords: | Magnetic shape memory alloys Martensite transformation Ni-Mn-In Internal friction Dynamic mechanical analysis |
| 本文献已被 CNKI ScienceDirect 等数据库收录！ | |
| 点击此处可从《自然科学进展(英文版)》浏览原始摘要信息 | |
| 点击此处可从《自然科学进展(英文版)》下载免费的PDF全文 | |