采用电孤熔炼-真空甩带-长时间高温退火工艺制备了Ni50 Mn37 Sn13、Ni50 Mn37 Sn13 Co9和Ni50 Mn37 Sn13-Fe9三种不同状态下的Heusler合金.利用光学显微镜、X射线衍射仪、差示扫描量热仪及电子探针对所得铸锭、薄带及高温退火薄带试样进行显微组织结构分析.结果表明3种合金的铸锭试样均为枝晶结构,由马氏体、奥氏体及杂质相组成;薄带试样仅为单一奥氏体相;退火后的薄带试样又恢复到类似于铸锭试样的组织结构.另外,Co/Fe元素的加入增加了合金凝固时的成分过冷度,且没有改变合金的组织结构,只是分别占据了合金中的Mn/Ni原子位点.
参考文献
| [1] | 陈远富,陈云贵,滕保华,唐永柏,付浩,唐定骧,涂铭旌.磁制冷发展现状及趋势：Ⅱ磁制冷技术[J].低温工程,2001(02):57-63. |
| [2] | Warburg E .Magnetische untersuchungen[J].Ann Of Phys,1881,249(5):141. |
| [3] | Vitalij P K;Karl G J .Magneto-caloric effect and magnetic refrigeration[J].Journal of Magnetism and Magnetic Materials,1999,200(1-3):44. |
| [4] | 罗广圣,李小怡,周正有,刘光华,熊惟皓,吴小山.稀土空位锰氧化物（La（1-x-y）Yy）2/3Ca1/3MnO3的磁热效应[J].中国有色金属学报,2007(12):2005-2009. |
| [5] | Brtück E;Tegus O;Zhang L et al.Magnetic refrigeration near room temperature with Fe2P-based compounds[J].Journal of Alloys and Compounds,2004,383(2):32. |
| [6] | 吴殿震,郑红星,翟启杰.磁制冷材料研究进展[J].材料导报,2011(15):9-14. |
| [7] | Chernenko V A;Cesari E;Kokorin V V et al.The development of new ferromagnetic shape memory alloys in NiMn-Ga system[J].Scripta Metallurgica et Materialia,1995,33(8):1239. |
| [8] | Y. Sutou;Y. Imano;N. Koeda;T. Omori;R. Kainuma;K. Ishida;K. Oikawa .Magnetic and martensitic transformations of NiMnX(X=In, Sn, Sb) ferromagnetic shape memory alloys[J].Applied physics letters,2004(19):4358-4360. |
| [9] | Yuhasz W M;Schlagel D L;Xing Q et al.Metastability of ferromagnetic Ni-Mn-Sn Heusler alloys[J].Journal of Alloys and Compounds,2010,492(1-2):681. |
| [10] | Khovaylo, V;Koledov, V;Shavrov, V;Ohtsuka, M;Miki, H;Takagi, T;Novosad, V.Influence of cobalt on phase transitions in Ni50Mn37Sn13[J].Materials Science & Engineering. A, Structural Materials: Properties, Microstructure and Processing,2008:322-325. |
| [11] | Lakhani A;Dash S;Banerjee A et al.Tuning the austenite and martensite phase fraction in ferromagnetic shape memory alloy ribbons of Ni45 Co5 Mr38 Sn12[J].Applied Physics Letters,2011,99(24):242503. |
| [12] | R. Kainuma;Y. Imano;W. Ito;H. Morito;Y. Sutou;K. Oikawa;A. Fujita;K. Ishida;S. Okamoto;O. Kitakami;T. Kanomata .Metamagnetic shape memory effect in a Heusler-type Ni_(43)Co_(7)Mn_(39)Sn_(11) polycrystalline alloy[J].Applied physics letters,2006(19):192513-1-192513-3-0. |
| [13] | Ito W et al.Concentration dependence of magnetic moment in Ni50-xCoxMn50-yZy (Z=In,Sn) Heusler alloys[J].Applied Physics Letters,2010,97(24):242512. |
| [14] | 张浩雷,李哲,乔燕飞,曹世勋,张金仓,敬超.哈斯勒合金Ni-Co-Mn-Sn的马氏体相变及其磁热效应研究[J].物理学报,2009(11):7857-7863. |
| [15] | Das R;Perumal A;Srinivasan A .Magnetic refrigerant properties of Ni50 Mn37-xFexSn13 alloy at low magnetic fields[J].Solid State Lett,2012,1447:1173. |
| [16] | Ingale B;Gopalan R;Raja MM;Chandrasekaran V;Ram S .Magnetostructural transformation, microstructure, and magnetocaloric effect in Ni-Mn-Ga Heusler alloys[J].Journal of Applied Physics,2007(1):13906-1-13906-5-0. |
| [17] | Campbell I A;Fert A;Jaoul O .The spontaneous resistivity anisotropy in Ni-based alloys[J].Journal of Physics C:Solid State Physics,1970,3(15):S95. |
| [18] | 孔大海 .Nd-Fe-B合金真空吸铸凝固组织及磁性能研究[D].宁波:宁波大学,2012. |
| [19] | 黄琼,赵珊茸.枝晶研究的发展现状[J].人工晶体学报,2002(05):486-489. |
| [20] | 曹磊,王宏伟,邹鹑鸣,魏尊杰.合金元素对电弧熔炼TiC/Ti-6Al-4V复合材料中TiC生长形态的影响[J].稀有金属材料与工程,2010(10):1773-1776. |
| [21] | 郑子樵.材料科学基础[M].长沙:中南大学出版社,2005 |
| [22] | 李树棠.晶体X射线衍射学基础[M].北京:冶金工业出版社,1990 |
| [23] | Krenke T;Acet M;Wassermann EF;Moya X;Manosa L;Planes A .Martensitic transitions and the nature of ferromagnetism in the austenitic and martensitic states of Ni-Mn-Sn alloys[J].Physical review, B. Condensed matter and materials physics,2005(1):4412-1-4412-9-0. |
| [24] | Z. D. Han;D. H. Wang;C. L. Zhang;H. C. Xuan;J. R. Zhang;B. X. Gu;Y. W. Du .The phase transitions, magnetocaloric effect, and magnetoresistance in Co doped Ni-Mn-Sb ferromagnetic shape memory alloys[J].Journal of Applied Physics,2008(5):053906-1-053906-5-0. |
| [25] | Wu, D.;Xue, S.;Frenzel, J.;Eggeler, G.;Zhai, Q.;Zheng, H..Atomic ordering effect in Ni _(50)Mn _(37)Sn _(13) magnetocaloric ribbons[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2012:568-572. |
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