Effect of Co substitution for Fe on microstructure and magnetic properties of FeNiSiBCuNb alloy ribbons  

作　　者：Wen-Feng Liu Ya-Ting Yuan Chang-Jiang Yu Shu-Jie Kang Qian-Ke Zhu Zhe Chen Ke-Wei Zhang Min-Gang Zhang 刘文峰;袁雅婷;于长江;康树杰;朱乾科;陈哲;张克维;张敏刚

机构地区：[1]School of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China [2]Laboratory of Magnetic and Electric Functional Materials and Applications,The Key Laboratory of Shanxi Province,Taiyuan 030024,China

出　　处：《Chinese Physics B》2025年第2期438-446,共9页中国物理B(英文版)

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.52275567);the Key Research and Development Program of Shanxi Province,China(Grant No.202202050201020);the Doctoral Starting-up Foundation of Taiyuan University of Science and Technology(Grant No.20192016);the Research Project Supported by Shanxi Scholarship Council(Grant No.2017-085);the Graduate Education and Teaching Reform Project of Shanxi Province,China(Grant No.2023JG136);the Special Fund for Science and Technology Innovation Teams of Shanxi Province,China(Grant No.202304051001036)。

摘　　要：This work investigated the microstructure,magnetic properties,and crystallization kinetics of the as-spun and annealed alloy ribbons of(Fe_(40-x)Co_xNi_(40)Si_(6.33)B_(12.66)Cu_1)_(0.97)Nb_(0.03),where x=0,6,7,8,9,prepared using the meltspinning method.The results show that adding a moderate amount of Co can improve the glass forming ability(GFA),the first peak crystallization temperature,and thermal stability of the as-spun alloy ribbons.With x=7,the two-stage crystallization temperature interval△Tx=90 exhibits optimal thermal stability,and the alloy annealed at 673 K for 10 minutes shows the favorable combined magnetic properties,with H_(c)=0.12 A/m,M_(s)=88.7 A·m^(2)/kg,andμ_(e)=13800.The magnetic domain results show that annealing removes numerous pinning points in the magnetic domains of the alloy ribbons,making the domain walls smoother and effectively reducing the pinning effect.

关 键 词：amorphous alloys Co substitution for Fe glass formation ability magnetic properties crystallization kinetics 

分 类 号：TG1[金属学及工艺—金属学]