The microstructure of Fe-Ga powders and magnetostriction of bonded composites

被引：21
|
作者：
Li, Jiheng [1 ]
Gao, Xuexu [1 ]
Zhu, Jie [1 ]
Jia, Juncheng [1 ]
Zhang, Maocai [1 ]
机构：
[1] Univ Sci & Technol Beijing, State Key Lab Adv Met & Mat, Beijing 100083, Peoples R China
来源：
SCRIPTA MATERIALIA | 2009年 / 61卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Fe-Ga alloy; Gas atomization; Powders; Magnetostriction; MAGNETO STRICTION; ALLOYS;
D O I：
10.1016/j.scriptamat.2009.04.019
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Spherical Fe-Ga particles were prepared by gas atomization. The Ga concentration of gas-atomized particles approached the nominal composition of Fe81Ga19. Most size fractions of particles had a polycrystalline structure. The main A2 phase and a DO3 phase emerged in the as-atomized powders. The L1(2) phase appeared in the annealed powders. Many single crystals were obtained due to grain growth during the thermal process. The maximum saturation magnetostriction of 6.4 x 10(-5) was obtained in the composite containing the annealed powders. (C) 2009 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
引用
收藏
页码：557 / 560
页数：4
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