Effect of yttrium on the mechanical and magnetostrictive properties of Fe83Ga17 alloy

Polycrystalline rod samples of （Fe83Ga17）100-xYx （x=0, 0.16, 0.32, 0.48, 0.64） were prepared by induction melting under argon atmosphere. Effect of yttrium on the mechanical and magnetostrictive properties of Fe83Ga17 alloy was investigated. Small amount of yttrium （0.16 at.%） increased the tensile...

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Published inJournal of rare earths Vol. 33; no. 10; pp. 1087 - 1092
Main Author 李纪恒 肖锡铭 袁超 高学绪 包小倩
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.10.2015
Subjects
Fe-Ga alloy
magnetostriction
mechanical property
rare earths
yttrium
α-Fe
力学性能
感应熔炼
抗拉强度
晶粒形状
磁致伸缩性能
磁致伸缩效应
钇合金
mechanical property
magnetostriction
yttrium
Fe-Ga alloy
rare earths
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Summary:Polycrystalline rod samples of （Fe83Ga17）100-xYx （x=0, 0.16, 0.32, 0.48, 0.64） were prepared by induction melting under argon atmosphere. Effect of yttrium on the mechanical and magnetostrictive properties of Fe83Ga17 alloy was investigated. Small amount of yttrium （0.16 at.%） increased the tensile strength of as-cast Fe83Ga17 alloys to 674 MPa and improved the ductility with elongation of 4.2% at room temperature. The Y2Fe17-xGax （6≤x≤7） phase was formed in the Y-doped Fe83Gax7 alloy since yttrium was hardly dissolved into the a-Fe lattice. Y2（FeGa）17 secondary phase dispersed along the grain boundaries and inside the grains played an important role for the enhancement of mechanical property. The 0.64 at.% Y-doped alloy had magnetostriction of 133 ppm, which was thought to be associated with the alteration of the grain shape and 〈 100〉 preferential orientation along the axial direction of rods.
Bibliography:11-2788/TF
Polycrystalline rod samples of （Fe83Ga17）100-xYx （x=0, 0.16, 0.32, 0.48, 0.64） were prepared by induction melting under argon atmosphere. Effect of yttrium on the mechanical and magnetostrictive properties of Fe83Ga17 alloy was investigated. Small amount of yttrium （0.16 at.%） increased the tensile strength of as-cast Fe83Ga17 alloys to 674 MPa and improved the ductility with elongation of 4.2% at room temperature. The Y2Fe17-xGax （6≤x≤7） phase was formed in the Y-doped Fe83Gax7 alloy since yttrium was hardly dissolved into the a-Fe lattice. Y2（FeGa）17 secondary phase dispersed along the grain boundaries and inside the grains played an important role for the enhancement of mechanical property. The 0.64 at.% Y-doped alloy had magnetostriction of 133 ppm, which was thought to be associated with the alteration of the grain shape and 〈 100〉 preferential orientation along the axial direction of rods.
yttrium; Fe-Ga alloy; magnetostriction; mechanical property; rare earths
LI Jiheng , XIAO Ximing, YUAN ChaoGAO Xuexu BAO Xiaoqian（State Key Laboratory for Advanced Metals and Materiais, University of Science and Technology Beijing, Beijing 100083, China）
ISSN:1002-0721
2509-4963
DOI:10.1016/S1002-0721(14)60530-5