| 铸态及快淬态Ni50Mn26Ga19Fe5合金的磁致应变 |
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| 引用本文： | 郭世海,张羊换,祁焱,全白云,王国清,王新林. 铸态及快淬态Ni50Mn26Ga19Fe5合金的磁致应变[J]. 材料工程, 2006, 0(10): 31-33,47 |
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| 作者姓名： | 郭世海 张羊换 祁焱 全白云 王国清 王新林 |
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| 作者单位： | 钢铁研究总院,功能材料研究所,北京,100081;钢铁研究总院,功能材料研究所,北京,100081;内蒙古科技大学,材料学院,内蒙古,包头,014010 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 研究了铸态及快淬Ni50Mn26Ga19Fe5掺杂合金的磁致应变性能.结果表明,掺Fe的Ni-Mn-Ga合金也具有典型的热弹性马氏体相变过程和磁转变过程,但铸态合金的结构为7层调制型马氏体(7M),而快淬合金的结构为14层调制型马氏体(14M).铸态合金最大磁致应变可达0.1%,快淬薄带合金最大磁致应变只能达到0.0095%.Ni50Mn26Ga19Fe5铸态合金比快淬合金有更大的磁致应变,说明掺杂元素Fe在Ni-Mn-Ga合金中的作用较为复杂.
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| 关 键 词： | Ni-Mn-Ga 磁性形状记忆合金 磁致应变 快淬 |
| 文章编号： | 1001-4381（2006）10-0031-03 |
| 收稿时间： | 2005-12-09 |
| 修稿时间： | 2005-12-092006-03-27 |
Magnetic-field-induced Strains of As-cast and Melt-spun Ni50Mn26Ga19Fe5 Alloys |
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| GUO Shi-hai,ZHANG Yang-huan,QI Yan,QUAN Bai-yun,WANG Guo-qing,WANG Xin-lin. Magnetic-field-induced Strains of As-cast and Melt-spun Ni50Mn26Ga19Fe5 Alloys[J]. Journal of Materials Engineering, 2006, 0(10): 31-33,47 |
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| Authors: | GUO Shi-hai ZHANG Yang-huan QI Yan QUAN Bai-yun WANG Guo-qing WANG Xin-lin |
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| Affiliation: | 1 .Functional Material Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China; 2 .School of Material, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China |
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| Abstract: | The magnetic-field-induced strains(MFIS) of as-cast and melt-spun Ni_(50)Mn_(26)Ga_(19)Fe_5 alloy with the substitution of Ga by Fe were investigated.The experimental results show that Ni_(50)Mn_(26)Ga_(19)Fe_5 alloy exhibits a typical thermal-elastic martensitic transformation and a magnetic transition.However,the as-cast alloy has a seven-layered modulated martensite(7M) structure and the melt-spun alloy has a fourteen-layered modulated martensite(14M) structure.The maximum MFIS of as-cast alloy is 0.1% and the MFIS of melt-spun alloy is only 0.0095%.The MFIS of as-cast alloy is larger than the MFIS of melt-spun alloy,which shows that the effect of Fe on Ni-Mn-Ga alloy is complex. |
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| Keywords: | Ni-Mn-Ga magnetic shape memory alloy magnetic-field-induced strain melt-spinning |
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