研究了Ni50Mn25+xGa25-x和Ni50Mn29Ga21-xTbx两种成分系列磁性记忆合金的相变行为.保持Ni含量不变,增加Mn,降低Ga含量会使马氏体相变温度明显提高,同时相变滞后温区减小,居里温度基本不变.如果添加稀土元素铽、相变温度继续升高,居里温度仍然不变,材料继续保持强的铁磁性及热弹性马氏体相变的特征.
参考文献
| [1] | Vasil'ev AN.;Khovailo VV.;Dikshtein IE.;Shavrov VG. Buchelnikov VD.;Matsumoto M.;Suzuki S.;Takagi T.;Tani J.;Bozhko AD. .Structural and magnetic phase transitions in shape-memory alloys Ni2+xMn1-xGa[J].Physical Review.B.Condensed Matter,1999(2):1113-1120. |
| [2] | Chernenko V A;Cesari E;Kokoin V V et al.The development of new ferromagnetic shape memory alloys in Ni-Mn-Ga system[J].Scripta Metallurgica et Materialia,1995,33:1239. |
| [3] | 陈京兰,胡凤霞,高书侠,王中,高智勇,赵连城,宫声凯,徐惠彬.Ni52MI24Ga24金属间化合物的单晶生长和磁性功能[J].金属学报,2001(04):353-357. |
| [4] | Matsumoto M;Takagi T;Tani J et al.Phase transformation of Heusler type Ni2+xMn1-xGa (x=0～0.9)[J].Materials Science and Engineering,1999,A273-275:326. |
| [5] | Ullakko K;Ezer Y;Sozinov A et al.Magnetic-field-induced strains in polycrystalline Ni-Mn-Ga at room temperature[J].Scripta Materialia,2001,44:475. |
| [6] | 余永宁.金属学原理[M].北京:冶金工业出版社,2000:473. |
| [7] | Guenin G;Gobin P F .A localized soft mode model for the nucleation of thermoelastic martensitic transformation:application to the β→9R transformation[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1982,13A:1127. |
| [8] | Kokorin V V;Chernenko V A;Cesari E et al.Premartensitic state in Ni-Mn-Ga alloys[J].Journal of Physics:Condensed Matter,1996,8:6457. |
| [9] | Wang W H;Hu F X;Wu G H et al.Magnetic properties and structural phase transformation of Ni-Mn-Ga alloy[J].IEEE Transactions on Magnetics,2001,37:2715. |
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