Abnormality of magnetic behavior and core loss of nanocrystalline Fe_(73.5)Cu_1Nb_3Si_(15.5)B_7 alloy  

作　　者：DONG BangShao1, ZHI QiZheng2, LI DeRen1, LU ZhiChao1 & ZHOU ShaoXiong1 1 Central Iron & Steel Research Institute, Advanced Technology & Materials Co., Ltd., Beijing 100081, China 2 School of Materials & Metallurgy, Northeastern University, Shenyang 110004, China 

出　　处：《Science China(Technological Sciences)》2010年第2期343-347,共5页中国科学（技术科学英文版）

基　　金：supported by the Beijing Municipal Science and Technology Project (Grant No. D405003040121);supported by National Amor-phous and Nanocrystalline Alloy Engineering Research Center, Beijing Central Iron and Steel Research Institute

摘　　要：The correlation between microstructure and magnetic properties of Fe73.5Cu1Nb3Si15.5B7 alloy annealed at 360°C—620°C has been investigated. The best static and dynamic soft magnetic properties have been obtained after annealing at 500°C and 550°C for 1 h, respectively. The dependence of annealing temperature on coercivity has shown three magnetic hardenings for the studied alloys annealed at 460°C, 530°C and 620°C, respectively. And the plot of core loss as a function of annealing temperature manifests a peak at 530℃, and this peak increases with increasing magnetic induction at low frequencies. This effect can probably be attributed to the precipitation of a new phase.The correlation between microstructure and magnetic properties of Fe73.5Cu1Nb3Si15.5B7 alloy annealed at 360°C—620°C has been investigated. The best static and dynamic soft magnetic properties have been obtained after annealing at 500°C and 550°C for 1 h, respectively. The dependence of annealing temperature on coercivity has shown three magnetic hardenings for the studied alloys annealed at 460°C, 530°C and 620°C, respectively. And the plot of core loss as a function of annealing temperature manifests a peak at 530℃, and this peak increases with increasing magnetic induction at low frequencies. This effect can probably be attributed to the precipitation of a new phase.

关 键 词：NANOCRYSTALLINE COERCIVITY magnetic HARDENING CORE LOSS 

分 类 号：TG131[一般工业技术—材料科学与工程]