Thermodynamics and Magnetostriction of Fe-Co-B-Si-Nb-C Bulk Metallic Glasses  

作　　者：GAO Zhen NI Xiao-jun GUO Jin-hua LI De-ren LU Zhi-chao ZHOU Shao-xiong 

机构地区：[1]Advanced Technology and Materials Co Ltd,China Iron and Steel Research Institute Group

出　　处：《Journal of Iron and Steel Research International》2013年第2期58-61,共4页

基　　金：Item Sponsored by National High-Tech Research and Development Program(863 Program) of China(2007AA03Z102);National Natural Science Foundation of China(51071050)

摘　　要：Fe-Co-B-Si-Nb-C glassy alloy with the addition of C was prepared by arc melting and copper suck-casting. The thermodynamics and soft magnetic properties were investigated. The casted amorphous alloys were heat-treated at different temperatures. The differential scanning calorimeter （DSC） results and thermal expansion show complete thermodynamics of crystallization. Its magnetostriction properties were studied by capacitance method. Saturation magnetostriction increases to 38×10^-6. The amorphous alloy exhibits good soft magnetic properties with low coercivity and high saturation magnetic induction. The results show that minor addition of C is beneficial to enhance the saturation magnetostriction λs, and do not deteriorate the ability of forming amorphous.Fe-Co-B-Si-Nb-C glassy alloy with the addition of C was prepared by arc melting and copper suck-casting. The thermodynamics and soft magnetic properties were investigated. The casted amorphous alloys were heat-treated at different temperatures. The differential scanning calorimeter （DSC） results and thermal expansion show complete thermodynamics of crystallization. Its magnetostriction properties were studied by capacitance method. Saturation magnetostriction increases to 38×10^-6. The amorphous alloy exhibits good soft magnetic properties with low coercivity and high saturation magnetic induction. The results show that minor addition of C is beneficial to enhance the saturation magnetostriction λs, and do not deteriorate the ability of forming amorphous.

关 键 词：amorphous material soft magnetic material MAGNETOSTRICTION thermal expansion 

分 类 号：TG166[金属学及工艺—热处理]