Large magnetic-field-induced strains in rare earth polycrystalline Ni-Mn-Ga

稀有金属（英文版）, 2004, 23(3): 241-245.

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1.Baotou Research Institute of Rare Earth, B aotou 014010, China

2.Baotou Research Institute of Rare Earth, B aotou 014010, China

3.Baotou Research Institute of Rare Earth, B aotou 014010, China

4.Baotou Research Institute of Rare Earth, B aotou 014010, China

5.Baotou Research Institute of Rare Earth, B aotou 014010, China

6.Department of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081, China

基金项目: 内蒙古自然科学基金(200308020214) 国家高技术研究发展计划(863计划)(2001AA327022)

Large magnetic-field-induced strains in rare earth polycrystalline Ni-Mn-Ga

Keywords： metal materials

The magnetic-field-induced strains (MFIS) of polycrystalline Ni50Mn29Ga21 alloys containing Tb were studied. A large MFIS of - 1.10% was obtained under compressive prestress conditions. The addition of Tb can fine the crystal grains, enhance the bending strength obviously, and make MFIS increase further, indicating that a moderate amount of Tb does not hinder twin boundary motion and it conversely makes the material more practical.

参考文献

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Large magnetic-field-induced strains in rare earth polycrystalline Ni-Mn-Ga

参考文献