Metallurgical origin of the effect of Fe doping on the martensitic and magnetic transformation behaviours of Ni50Mn40-xSn10Fex magnetic shape memory alloys
文献类型：期刊论文
| 作者 | Wu, ZG ; Liu, ZH ; Yang, H ; Liu, YN ; Wu, GH ; Woodward, RC |
| 刊名 | INTERMETALLICS
 |
| 出版日期 | 2011 |
| 卷号 | 19期号:4页码:445 |
| 关键词 | LARGE NEGATIVE MAGNETORESISTANCE MN NI2+XMN1-XGA NITI |
| ISSN号 | 0966-9795 |
| 通讯作者 | Liu, YN: Univ Western Australia, Sch Mech & Chem Engn, 35 Stirling Highway, Crawley, WA 6009, Australia. |
| 中文摘要 | This study investigated the metallurgical origin of the effects of Fe substitution for Mn on the martensitic and the magnetic transformation behaviours of Ni50Mn40-xSn10Fex (x = 0, 3, 4, 5, 6) alloys. Substitution of Fe for Mn at above 3 at% introduced an fcc gamma phase in the microstructure. Formation of the gamma phase influenced the composition of the bcc/B2 matrix, leading to decrease in martensitic transformation temperatures and transformation entropy change. The Curie temperature of the parent phase increased slightly, whereas the Curie temperature of the martensite increased rapidly with increasing Fe addition. Changes in the temperatures of the martensitic and magnetic transformations are confirmed to directly relate to the eta ratio of the matrix caused by formation of gamma phase. The minimum eta ratio value for the occurrence of the martensitic transformation is estimated to be 8.045 for the alloy system studied. A narrow e/a ratio range of 8.113-8.137 is estimated for the occurrence of metamagnetic transformationM(para) double left right arrow A(ferro). This metamagnetic reverse transformation was induced by a magnetic field at 225 K within a range of 3-7 Tin the Ni50Mn35Sn10Fe5 alloy. The magnetic work required to induce the transformation is estimated to be similar to 176 J/kg, comparable to the thermodynamic energy deficit for the transformation at the testing temperature estimated from thermal measurement. These findings clarify the origin of the effects of Fe doping in Ni50Mn40-xSm10 alloys and provides reference on alloys design for this system. (C) 2010 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 in ISL [CH070136]; National Natural Science Foundation of China [10774178] |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41935]  |
| 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. Metallurgical origin of the effect of Fe doping on the martensitic and magnetic transformation behaviours of Ni50Mn40-xSn10Fex magnetic shape memory alloys[J]. INTERMETALLICS,2011,19(4):445. |
| APA | Wu, ZG,Liu, ZH,Yang, H,Liu, YN,Wu, GH,&Woodward, RC.(2011).Metallurgical origin of the effect of Fe doping on the martensitic and magnetic transformation behaviours of Ni50Mn40-xSn10Fex magnetic shape memory alloys.INTERMETALLICS,19(4),445. |
| MLA | Wu, ZG,et al."Metallurgical origin of the effect of Fe doping on the martensitic and magnetic transformation behaviours of Ni50Mn40-xSn10Fex magnetic shape memory alloys".INTERMETALLICS 19.4(2011):445. |
入库方式： OAI收割
来源：物理研究所
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