研究了Ni50Mn2s+xGa25-xTb0.5(x=0,1.5,3,4.5,6)磁性记忆合金马氏体相变行为、饱和磁化强度和磁感生应变.结果表明,随着Mn含量的增加、Ga含量的降低,合金的马氏体相变温度从202 K升高到416 K,饱和磁化强度从700 mT降低到400 mT,最大磁感生应变达到1870ppm.
参考文献
| [1] | O'Handley RC.;Marioni M.;Nembach H.;Allen SM.;Murray SJ. .Phenomenology of giant magnetic-field-induced strain in ferromagnetic shape-memory materials (invited)[J].Journal of Applied Physics,2000(9 Pt.2):4712-4717. |
| [2] | Ullakko K et al.[J].Applied Physics Letters,1996,69(13):1966-1968. |
| [3] | G. H. Wu;C. H. Yu;L. Q. Meng;J. L. Chen;F. M. Yang;S. R. Qi;W. S. Zhan;Z. Wang;Y. F. Zheng;L. C. Zhao .Giant magnetic-field-induced strains in Heusler alloy NiMnGa with modified composition[J].Applied physics letters,1999(19):2990-2992. |
| [4] | W. H. Wang;G. H. Wu;J. L. Chen .Stress-free two-way thermoelastic shape memory and field-enhanced strain in Ni_(52)Mn_(24)Ga_(24) single crystals[J].Applied physics letters,2000(20):3245-3247. |
| [5] | Y.F. Wang;J.M. Wang;C.B. Jiang .Composition Triangle Diagrams of Ni-Mn-Ga Magnetic Shape Memory Alloys[J].Acta metallurgica Sinica,2006(3):171-175. |
| [6] | 刘经燕;王建平;陈益瑞.测试技术及应用[M].广州:华南理工大学,2001:145-167. |
| [7] | O'Handley RC. .Model for strain and magnetization in magnetic shape-memory alloys[J].Journal of Applied Physics,1998(6):3263-3270. |
| [8] | Webster P J et al.[J].Philosophical Magazine,1984,49:295-310. |
| [9] | 吴双霞,江丽萍,韩丽,郝宏波,张光睿,赵增祺.Tb在Ni-Mn-Ga合金中的存在状态及其对磁感生应变的影响[J].中国稀土学报,2007(z1):62-65. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%