Effect of Ni addition on the glass-forming ability and soft-magnetic properties of FeNiBPNb metallic glasses  

作　　者：WANG AnDing ZHANG MingXiao ZHANG JianHua MEN He SHEN BaoLong PANG ShuJie ZHANG Tao 

机构地区：[1]Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology ＆ Engineering, Chinese Academy of Sciences, Ningbo 315201, China [2]School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

出　　处：《Chinese Science Bulletin》2011年第36期3932-3936,共5页

基　　金：supported by the National Science Fund for Distinguished Young Scholars (50825103);the National High Technology Research and Development Program of China (2009AA03Z214);the Hundred Talents Program of the Chinese Academy of Sciences (KGCX-2-YW-803)

摘　　要：The effect of Ni addition on the glass-forming ability (GFA) and soft-magnetic properties of an (Fe1-xNix)75.5B14.5P7Nb3 (x=0-0.6) alloy system were investigated. We found that the addition of Ni was effective in allowing the alloy to approach a eutectic point as well as increasing the thermal stability of the supercooled liquid. By increasing the amount of Ni,the supercooled liquid region (ΔTx),the reduced glass transition temperature Trg (Tg/Tl) and the Y parameter [Tx/(Tg+Tl)] increased from 49 to 75 K,0.540 to 0.594 and 0.373 to 0.405,respectively. As a result,novel (Fe1-xNix)75.5B14.5P7Nb3 bulk metallic glass (BMG) rods with a maximum diameter of 1 mm were synthesized with a composition of x=0.5 and x=0.6 by copper mold casting. These metallic glasses have a moderate saturation magnetization of 0.37-1.20 T with good soft-magnetic properties,i.e. a low coercivity of 1.4-3.3 A/m and a high effective permeability of 13100-20900 at 1 kHz. The simultaneous achievement of a high GFA and good soft-magnetic properties for the FeNi-based alloy system is promising for the future development of BMGs.The effect of Ni addition on the glass-forming ability （GFA） and soft-magnetic properties of an （Fe1-xNix）75.5B14.5P7Nb3 （x=0-0.6） alloy system were investigated. We found that the addition of Ni was effective in allowing the alloy to approach a eutectic point as well as increasing the thermal stability of the supercooled liquid. By increasing the amount of Ni,the supercooled liquid region （ΔTx）,the reduced glass transition temperature Trg （Tg/Tl） and the Y parameter [Tx/（Tg＋Tl）] increased from 49 to 75 K,0.540 to 0.594 and 0.373 to 0.405,respectively. As a result,novel （Fe1-xNix）75.5B14.5P7Nb3 bulk metallic glass （BMG） rods with a maximum diameter of 1 mm were synthesized with a composition of x=0.5 and x=0.6 by copper mold casting. These metallic glasses have a moderate saturation magnetization of 0.37-1.20 T with good soft-magnetic properties,i.e. a low coercivity of 1.4-3.3 A/m and a high effective permeability of 13100-20900 at 1 kHz. The simultaneous achievement of a high GFA and good soft-magnetic properties for the FeNi-based alloy system is promising for the future development of BMGs.

关 键 词：大块金属玻璃 玻璃形成能力 软磁性能 玻璃化转变温度 合金系统 饱和磁化强度 过冷液相区 有效渗透率 

分 类 号：TG139.8[一般工业技术—材料科学与工程] TS205.7[金属学及工艺—合金]