Effect of cooling rate on magnetoelasticity and short-range order in Fe-Ga alloys

被引：30
|
作者：
Xing, Q. [1 ]
Lograsso, T. A. [1 ]
机构：
[1] Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA
来源：
SCRIPTA MATERIALIA | 2011年 / 65卷 / 04期
关键词：
Magnetostriction; Short-range ordering; Iron; Gallium; X-ray diffraction; MAGNETOSTRICTION;
D O I：
10.1016/j.scriptamat.2011.05.010
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
For Fe-Ga single crystals, faster cooling rates achieved by metallic quench and ice-water quench extended the tetragonal magnetostriction constant, (3/2) lambda(100), to higher Ga contents than reported previously. The maximum magnetostriction measured was 420 ppm at a composition of 21.4 at.% Ga. Using these faster cooling rates, the formation of short-range order (SRO) was obviously suppressed in A2 single phase, while this change in SRO did not significantly affect (3/2) (lambda 100). (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：359 / 362
页数：4
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