Influence of external stress on the reversibility of magnetic-field-controlled shape memory effect in Ni-Mn-Ga.

被引:38
作者
Likhachev, AA [1 ]
Sozinov, A [1 ]
Ullakko, K [1 ]
机构
[1] Helsinki Univ Technol, Dept Engn Math & Phys, FIN-02150 Espoo, Finland
来源
SMART STRUCTURES AND MATERIALS 2001: ACTIVE MATERIALS: BEHAVIOR AND MECHANICS | 2001年 / 4333卷
关键词
ferromagnetism; magnetostriction; magnetic shape memory; martensitic transformation;
D O I
10.1117/12.432757
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Present publication gives a detailed report about the experimental results obtained concerning the effect of external constant stress on the magnetic field controlled strain response during the cyclic change of the magnetic field. Simultaneously we represent a brief overview of the most important structural and magneto-mechanical properties of Ni48Mn30Ga22 - family magnetic shape memory alloys. We also discuss the physical mechanism of this effect using our last model developments.
引用
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页码:197 / 206
页数:10
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