摘要
采用真空电弧熔炼法制备了Y2xFe100-3xBx(x=3.0,4.5,5.9,6.2)不同成分的合金样品,利用X射线衍射仪与电子探针测定合金样品的相组成、相成分及微观组织形貌,采用差热分析仪测定了合金样品的相转变温度。实验结果表明,不同成分的Y2xFe100-3xBx(x=3.0,4.5,5.9,6.2)合金相组成有所差异,但合金中均含有α-Fe、Y2Fe17和Y2Fe14B三个物相,并且合金成分随着x的增加,α-Fe相含量减小,Y2Fe17相含量增加。根据合金相转变的热分析结果,最终确定了Y2Fe17、Y2Fe14B的相变温度。
Y2xFe100-3xBx(x=3.0,4.5,5.9,6.2) alloys were prepared by arc melting method under an argon atmosphere. The phase composition and microstructure of the alloys were determined by X-ray diffraction and Electron Probe Micro-analyzer, and the phase transition temperature was determined by Differential Thermal Analysis. The results showed that the composition of Y2xFe100-3xBx(x=3.0,4.5,5.9,6.2) alloy phases was different, but all alloys contained α-Fe, Y2Fe17 and Y2Fe14B. With the increase of x, the volume fraction of α-Fe phase decreased, and the volume fraction of Y2Fe17 phase increased. The phase transition temperatures of Y2Fe17 and Y2Fe14B were determined according to the thermal analysis results of phase transformation.
作者
柯庆进
许磊
李莎
戎茂华
王江
KE Qingjin;XU Lei;LI Sha;RONG Maohua;WANG Jiang(School of Material Science and Engineering,Guilin University of Electronic Technology,Guilin 541004,China)
出处
《桂林电子科技大学学报》
2020年第1期77-81,共5页
Journal of Guilin University of Electronic Technology
基金
国家自然科学基金(51761008)
广西自然科学基金(2016GXNSFDA380015,2016GXNSFGA380001)
广西科技计划(2017AD23031)。
关键词
稀土永磁
Y-Fe-B合金
微观组织
相转变
rare earth permanent magnet
Y-Fe-B alloy
microstructure
phase transformation
