| Автор | Wu, Zhigang |
| Автор | Liu, Zhuhong |
| Автор | Yang, Hong |
| Автор | Liu, Yinong |
| Автор | Wu, Guangheng |
| Дата выпуска | 2011-09-28 |
| dc.description | This study investigated the effect of Co substitution for Ni in Mn<sub>50</sub>Ni<sub>42</sub>Sn<sub>8</sub> alloy with the aim of increasing the magnetic driving force for inducing its martensitic transformation. The martensitic transformation temperatures, enthalpy and entropy changes were found to decrease progressively with increasing Co content, while the transformation hysteresis increased. Co substitution for Ni also significantly increased the magnetization of the austenite, but with negligible effect on that of the martensite. A large magnetization difference 109 emu g<sup>−1</sup> was achieved across the transformation in a Mn<sub>50</sub>Ni<sub>34</sub>Sn<sub>8</sub>Co<sub>8</sub> alloy. The large magnetization difference between the two phases provides enhanced thermodynamic driving force for the transformation. Consequently, the martensitic transformation was induced by the application of a magnetic field in Mn<sub>50</sub>Ni<sub>36</sub>Sn<sub>8</sub>Co<sub>6</sub> and Mn<sub>50</sub>Ni<sub>34</sub>Sn<sub>8</sub>Co<sub>8</sub> alloys. The effect of Co substitution for Ni on the magnetic interaction among the constituents for the austenite and martensite was clarified in this study, which provides a guide for alloy design for magnetoactuation applications. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2011 IOP Publishing Ltd |
| Название | Martensitic and magnetic transformation behaviours in Mn<sub>50</sub>Ni<sub>42−x</sub>Sn<sub>8</sub>Co<sub>x</sub> polycrystalline alloys |
| Тип | paper |
| DOI | 10.1088/0022-3727/44/38/385403 |
| Electronic ISSN | 1361-6463 |
| Print ISSN | 0022-3727 |
| Журнал | Journal of Physics D: Applied Physics |
| Том | 44 |
| Первая страница | 385403 |
| Последняя страница | 385410 |
| Аффилиация | Wu, Zhigang; School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia |
| Аффилиация | Liu, Zhuhong; Department of Physics, University of Science and Technology Beijing, Beijing 100083, People's Republic of China |
| Аффилиация | Yang, Hong; School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia |
| Аффилиация | Liu, Yinong; School of Mechanical and Chemical Engineering, The University of Western Australia, Crawley, WA 6009, Australia |
| Аффилиация | Wu, Guangheng; Beijing National Laboratory for Condense Matter Physics, Institute of Physics, Chinese Academy of Science, Beijing 100080, People's Republic of China |
| Выпуск | 38 |
