Martensitic transformation and metamagnetic shape memory effect in Ni46Co4Mn37In13 Heusler alloy

摘要：

The phase transition strain and magnetostrain during the martensitic transformation have been systematically investigated in Ni46Co4Mn37In13 Heusler alloy. A large phase transition strain with the value of about 0.25％ upon martensitic transition has been observed, which is much larger than that in other metamagnetic shape memory alloys. In addition, such phase transition strain can be also obtained by the field change of about 50 kOe, exhibiting a large metamagnetic shape memory effect with nonprestrain. This behavior can be attributed to magnetoelastic coupling, which is caused by large difference in Zeeman energy between austenitic and martensitic phases.

关键词： Heusler alloy Martensitic transition Metamagnetic shape memory effect

作者: C. Jing H. L. Zhang Z. Li D. H. Yu S. X. Cao J. C. Zhang

作者单位: Department of physics, Shanghai University, Shanghai 200444, China

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 505-509

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）