| Tb对多晶Ni_(52.5)Mn_(23.5)Ga_(24)合金马氏体相变和磁感生应变的影响 |
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| 引用本文： | 李雪梅,赵增祺,王海学,吴双霞,江丽萍,熊玮.Tb对多晶Ni_(52.5)Mn_(23.5)Ga_(24)合金马氏体相变和磁感生应变的影响[J].稀土,2004(3). |
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| 作者姓名： | 李雪梅 赵增祺 王海学 吴双霞 江丽萍 熊玮 |
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| 作者单位： | 内蒙古科技大学材料科学与工程学院，包头稀土研究院，内蒙古工业大学材料科学与工程学院，包头稀土研究院，包头稀土研究院，包头稀土研究院 内蒙古 包头 014010，内蒙古 包头 014010，内蒙古 呼和浩特 010062，内蒙古 包头 014010，内蒙古 包头 014010，内蒙古 包头 014010 |
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| 基金项目： | 内蒙古自然科学基金(200308020214) |
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| 摘 要： | 研究了添加不同量的Tb对多晶Ni52.5Mn23.5Ga24的马氏体相变和磁性能的影响,发现合金的马氏体相变温度显著提高,而在不加外应力的作用下合金的磁感生应变值却有所下降。
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| 关 键 词： | Ni-Mn-Ga合金 Tb 马氏体相变 磁感生应变 |
Effect of Tb on Martensitic Transformation and Magnetic-Field-Induced Strain in Polycystalline Ni_(52.5)Mn_(23.5)Ga_(24) Alloy |
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| LI Xue-mei,ZHAO Zeng-qi,WANG Hai-Xue,WU Shuang-xia,JIANG Li-ping,XIONG Wei.Effect of Tb on Martensitic Transformation and Magnetic-Field-Induced Strain in Polycystalline Ni_(52.5)Mn_(23.5)Ga_(24) Alloy[J].Chinese Rare Earths,2004(3). |
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| Authors: | LI Xue-mei ZHAO Zeng-qi WANG Hai-Xue WU Shuang-xia JIANG Li-ping XIONG Wei |
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| Affiliation: | LI Xue-mei~1,ZHAO Zeng-qi~2,WANG Hai-Xue~3,WU Shuang-xia~2,JIANG Li-ping~2,XIONG Wei~2 |
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| Abstract: | Ferromagnetic Heusler alloy Ni_2MnGa has been developed as an advanced magnetic field control actuator material and used as magnetic field-controlled shape memory effect and magnetic-field-induced strain (MFIS). However the martensitic transformation temperature of Ni_2MnGa is quite lower than room temperature. The martensitic transformation and magnetic properties of a polycrystalline alloy Ni_(52.5)Mn_(23.5)Ga_(24) was investigated by adding different amount of Tb. The results show that martensitic transformation temperature was increased remarkably,while magnetic-field-induced strain was reduced. |
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| Keywords: | Ni-Mn-Ga alloy terbium martensitic transformation magnetic-field-induced strain |
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