Martensitic transformations and magnetic-field-induced strains in Ni50Mn50-xGax alloys

被引：16

作者：

Popov, A. G. ^{[1
]}

Belozerov, E. V. ^{[1
]}

Sagaradze, V. V. ^{[1
]}

Pecherkina, N. L. ^{[1
]}

Kabanova, I. G. ^{[1
]}

Gaviko, V. S. ^{[1
]}

Khrabrov, V. I. ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia

来源：

PHYSICS OF METALS AND METALLOGRAPHY | 2006年 / 102卷 / 02期

关键词：

D O I：

10.1134/S0031918X06080047

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Concentration dependences of the temperatures of forward and reverse martensitic transformations in Ni50Mn50-x Ga-x alloys (x = 19-25) and features of the jumpwise elongation epsilon induced by magnetic field H in a single crystal of the Ni50Mn28.5Ga21.5 alloy have been studied. A single-variant state of martensite in the single crystal was formed by compression under the action of both a reference magnetic field and mechanical loading. It has been shown that when employing uniaxial mechanical compression, several large jumps (whose nature is associated with the appearance of structural defects hindering the displacement of boundaries of martensite twins) arise in curves of the single-crystal elongation induced by an applied perpendicular magnetic field H-perpendicular to.

引用

页码：140 / 148

页数：9

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