快淬速度对Fe_(83)Ga_(17)Ce_(0.8)合金微结构和磁致伸缩性能的影响  

Effects of Rapidly Quenching Rate on Microstructure and Magnetostriction of Fe_(83)Ga_(17)Ce_(0.8) Alloys

作　　者：姚占全[1,2] 赵增祺[1,3] 江丽萍[3] 郝宏波[3] 吴双霞[3] 张光睿[3] 杨建东[3] 

机构地区：[1]内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特010051 [2]内蒙古农业大学水利与土木建筑工程学院,内蒙古呼和浩特010018 [3]包头稀土研究院,内蒙古包头014030

出　　处：《内蒙古师范大学学报（自然科学汉文版）》2014年第1期43-47,共5页Journal of Inner Mongolia Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51141005);内蒙古自治区高等学校科学研究项目(NJZY14082);国际合作研究项目(2010DFA52570)

摘　　要：采用熔炼法和快淬法分别制备了铸态和快淬态Fe83Ga17Ce0.8合金,研究了快淬速度对铸态和快淬态Fe83Ga17Ce0.8合金的组织结构和磁致伸缩性能的影响.结果表明,所有合金的基体为Fe(Ga)无序固溶体相,铸态和6m/s快淬态Fe83Ga17Ce0.8合金中均含有小量的CeFe2相,快淬导致微量非对称结构的DO3相析出.随着快淬速度的增大,合金的磁致伸缩系数绝对值先增大后大幅度减小.6m/s快淬态合金的磁致伸缩系数最大,在外磁场为557kA/m时达到382×10-6.6m/s快淬态合金大的磁致伸缩性能主要来源于合金中形成的CeFe2相和析出的非对称结构的DO3相.The as-cast and rapidly quenched Fes3Ga17Ce0.8 alloys were prepared by melting and rapidly quenching, respectively. Effects of rapidly quenching rate on microstructure and magnetostriction of as-cast and rapidly quenched Fe83Ga17 Ce0.8 alloys were investigated. The results showed that the matrixes of all of the alloys are disordered Fe（Ga） solid solution. The as-cast and rapidly quenching alloy of 6 m/s contain a small amount of CeFez phase. Rapidly quenching leads to the formation of an unsymmetrical DO3 struc- ture. The absolute value of magnetostriction of alloy increases firstly and then decreases with increasing quenching rate. When v=6 m/s,the maximum magnetostriction coefficient of 382 × 10 6 is obtained at the magnetic field of 557 kA/m. It was considered that the giant magnetostriction of rapidly quenched alloy of 6 m/s originates from the CeFez phase and unsymmetrical DO3 structure.

关 键 词：FE-GA合金 磁致伸缩 熔体快淬 DO3结构 

分 类 号：TG113[金属学及工艺—物理冶金]