铸态及快淬态Ni50Mn26Ga19Fe5合金的磁致应变

材料工程, 2006, (10): 31-47. doi: 10.3969/j.issn.1001-4381.2006.10.009

铸态及快淬态Ni50Mn26Ga19Fe5合金的磁致应变

郭世海 ^1, , 张羊换 ^2, , 祁焱 ^3, , 全白云 ^4, , 王国清 ^5, , 王新林 ^6,

1.钢铁研究总院,功能材料研究所,北京,100081

2.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

3.钢铁研究总院,功能材料研究所,北京,100081

4.钢铁研究总院,功能材料研究所,北京,100081

5.钢铁研究总院,功能材料研究所,北京,100081

6.钢铁研究总院,功能材料研究所,北京,100081

基金项目: 国家高技术研究发展计划(863计划)(2001AA327022)

关键词： Ni-Mn-Ga , 磁性形状记忆合金 , 磁致应变 , 快淬

Magnetic-field-induced Strains of As-cast and Melt-spun Ni50Mn26Ga19Fe5 Alloys

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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材料期刊网

铸态及快淬态Ni50Mn26Ga19Fe5合金的磁致应变

Magnetic-field-induced Strains of As-cast and Melt-spun Ni50Mn26Ga19Fe5 Alloys

参考文献