Effect of Co addition on martensitic phase transformation and magnetic properties of Mn50Ni40-xIn10Cox polycrystalline alloys
文献类型：期刊论文
| 作者 | Wu, ZG ; Liu, ZH ; Yang, H ; Liu, YN ; Wu, GH |
| 刊名 | INTERMETALLICS
 |
| 出版日期 | 2011 |
| 卷号 | 19期号:12页码:1839 |
| 关键词 | SHAPE-MEMORY ALLOYS HALF-METALLIC FERRIMAGNETISM HEUSLER ALLOYS ENTROPY CHANGE MN NI GA |
| ISSN号 | 0966-9795 |
| 通讯作者 | Liu, YN: Univ Western Australia, Sch Mech & Chem Engn, Crawley, WA 6009, Australia. |
| 中文摘要 | This study investigated the use of Co to enhance the magnetic driving force for inducing the martensitic transformation of Mn50Ni40-xIn10Cox alloys. These alloys present a martensitic transformation from a Hg2CuTi-type austenite to a body centered tetragonal martensite, with a large lattice distortion of 15.7% elongation along the c direction and 8.2% contraction along a and b directions. The martensitic transformation temperatures, transformation enthalpy and entropy changes decreased with increasing the Co content in these alloys. The maximum magnetization of the austenite increased significantly, whereas that of the martensite changed much less prominently with increasing the Co substitution for Ni, leading to increase of the magnetic driving force for the transformation. The magnetization increase of the austenite is found to be due to (i) formation of ferromagnetically coupled Mn-Mn due to new atomic configuration in off-stoichiometric composition, (ii) magnetic moment contribution of Co and (iii) widening of the temperature window for magnetization of the austenite by lowering the temperature of the martensitic transformation. These findings clarify the effect of Co addition on martensitic transformation and magnetic properties in Mn-rich ferromagnetic shape memory alloys, and provide useful understanding for alloy design for magnetoactuation applications. (C) 2011 Elsevier Ltd. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | Department of Innovation Industry, Science and Research of the Australian Government [CH070136]; National Natural Science Foundation of China [51001010] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36376]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Wu, ZG,Liu, ZH,Yang, H,et al. Effect of Co addition on martensitic phase transformation and magnetic properties of Mn50Ni40-xIn10Cox polycrystalline alloys[J]. INTERMETALLICS,2011,19(12):1839. |
| APA | Wu, ZG,Liu, ZH,Yang, H,Liu, YN,&Wu, GH.(2011).Effect of Co addition on martensitic phase transformation and magnetic properties of Mn50Ni40-xIn10Cox polycrystalline alloys.INTERMETALLICS,19(12),1839. |
| MLA | Wu, ZG,et al."Effect of Co addition on martensitic phase transformation and magnetic properties of Mn50Ni40-xIn10Cox polycrystalline alloys".INTERMETALLICS 19.12(2011):1839. |
入库方式： OAI收割
来源：物理研究所
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