A new ferromagnetic shape memory alloy system

被引：337

作者：

Wuttig, M ^{[1
]}

Li, J ^{[1
]}

Craciunescu, C ^{[1
]}

机构：

[1] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA

来源：

SCRIPTA MATERIALIA | 2001年 / 44卷 / 10期

关键词：

phase transformation; shape memory; microstructure; internal friction; ferromagnetic hysteresis;

D O I：

10.1016/S1359-6462(01)00939-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

It is shown that the alloys Co(2)Ni(1-x)Ga(1+x,)x = 0.06, 0.09, 0.17, 0.15, are ferromagnetic shape memory alloys. In the as-solidified start: their martensite start temperatures vary in the range 20 degreesC <T < 60 degreesC as the concentration parameter x decreases. The high and low temperature phases are body centered cubic and orthorhombic and/or monoclinic, respectively. The transformation hysteresis. i.e. the difference between the martensite and austenite start temperatures, equals approximately 30 degrees. The saturation magnetization of the alloys resembles that of nickel while their coercive force is of the order of 100mT. (C) 2001 Acta Materiala Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：2393 / 2397

页数：5

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