| Formation of texture of Ni48Mn31Ga21 polycrystalline alloy by thermal simulation pack rolling technology |
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| 作者姓名： | 卢斌 王花宾 刘岩 刘吉轩 王洪磊 |
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| 作者单位： | School of Materials Science and Engineering Central South University Changsha 410083 China，School of Materials Science and Engineering Central South University Changsha 410083 China，Center of Research and Development of Special Materials Institute of Shanghai Silicate Research Chinese Academy of Scienc es Shanghai 200050 China，School of Materials Science and Engineering Central South University Changsha 410083 China，School of Materials Science and Engineering Central South University Changsha 410083 China |
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| 摘 要： | 1 Introduction Heusler type Ni2MnGa magnetic shape memoryalloy, which is a new kind of functional material withferromagnetism and thermoelastic martensitictransformation, attracts the interests of many people allover the world in recent years. The alloy …
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| 关 键 词： | Ni-Mn-Ga 镍合金 形状记忆合金 热模拟 轧制 马氏体转变 |
| 收稿时间： | 2005-09-30 |
| 修稿时间： | 2006-01-10 |
Formation of texture of Ni48Mn31Ga21 polycrystalline alloy by thermal simulation pack rolling technology |
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| LU Bin,WANG Hua-bin,LIU Yan,LIU Ji-xuan,WANG Hong-lei.Formation of texture of Ni48Mn31Ga21 polycrystalline alloy by thermal simulation pack rolling technology[J].Transactions of Nonferrous Metals Society of China,2006,16(4):843-847. |
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| Authors: | LU Bin WANG Hua-bin LIU Yan LIU Ji-xuan WANG Hong-lei |
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| Affiliation: | 1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;2. Center of Research and Development of Special Materials, Institute of Shanghai Silicate Research, Chinese Academy of Sciences, Shanghai 200050, China;1. Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;2. Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, John Street, Hawthorn, Victoria 3122, Australia |
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| Abstract: | The hot deformation behavior of Ni48Mn31Ga21 alloy was studied by thermal simulation rolling technology. Microstructure evolution of the alloys under different rolling processes was studied by optical microscopy(OM) and X-ray diffractometry(XRD).The results show that, by thermal simulation pack rolling technology, textures appear in polycrystalline Ni48Mn31Ga21 alloy, and big cracks can be avoided under large deformation ratio. The rolling process with few passes and strong deformation makes Ni48Mn31Ga21 alloy obtain (202), (400) and (323) textures of martensitic variants more easily, especially (400) texture. Besides the interface between package materials and the Ni48Mn31Ga21 alloy is clear, which is beneficial for Ni48Mn31Ga21 alloy to separate from pack. |
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| Keywords: | Ni-Mn-Ga alloys magnetic shape memory alloys thermal simulation rolling martensitic transformation texture |
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