Shape memory effect due to magnetic field-induced thermoelastic martensitic transformation in polycrystalline Ni-Mn-Fe-Ga alloy

被引：130

作者：

Cherechukin, AA

Dikshtein, IE

Ermakov, DI

Glebov, AV

Koledov, VV

Kosolapov, DA

Shavrov, VG ^{[1
]}

Tulaikova, AA

Krasnoperov, EP

Takagi, T

机构：

[1] Russian Acad Sci, Inst Radioengn & Elect, Moscow 101999, Russia

[2] Russian Res Ctr, Kurchatov Inst, Moscow 123182, Russia

[3] Tohoku Univ, Inst Fluid Sci, Sendai, Miyagi 980, Japan

来源：

PHYSICS LETTERS A | 2001年 / 291卷 / 2-3期

基金：

俄罗斯基础研究基金会;

关键词：

martensitic phase transition; Curie point; shape memory effect; colossal magnetostriction;

D O I：

10.1016/S0375-9601(01)00688-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In Heusler-type alloy Ni2+x-yMn1-xFeyGa, partial substitution of Mn for Ni causes the temperatures of structural (martensitic) TM and magnetic TC (Curie point) phase transitions to converge. Close to the crossover of TM and TC, we have observed the strong strains (Deltal/l approximate to 2-4%) induced by the external magnetic field. This effect could be classed with colossal magnetostriction. The system exhibits the magnetic field-controlled one-way shape memory effect at fixed temperature as a result of the magnetic field-induced martensite to austenite structural phase transition. (C) 2001 Elsevier Science B.V All rights reserved.

引用

页码：175 / 183

页数：9

共 22 条

[1] Magnetic and structural phase transitions in the shape-memory ferromagnetic alloys Ni2+xMn1-xGa [J].