Soft magnetic properties of (Fe, Co)-RE-B amorphous alloys with a large supercooled liquid region

被引：27
|
作者：
Zhang, W [1 ]
Inoue, A
机构：
[1] Japan Sci & Technol Corp, Exploratory Res Adv Technol, Inoue Superliquid Glass Project, Sendai, Miyagi 9820807, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
MATERIALS TRANSACTIONS | 2001年 / 42卷 / 06期
关键词：
iron-based amorphous alloy; iron-cobalt-rare earth-boron system; high boron concentration; supercooled liquid region; soft magnetic properties;
D O I：
10.2320/matertrans.42.1142
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Fe-based amorphous alloys with high B concentrations in (Fe, Co)-RE-B system were found to exhibit a large supercooled liquid region (DeltaT(x)) in a composition range 22.5-30 at%B, 0-30 at%Co and 2.56 at%RE. The DeltaT(x) values exceeding 50 K were obtained for a series of Fe62Co9.5RE3.5B25 (RE = Pr, Nd, Sm, Gd, Tb, Dy, Er) amorphous alloys. The Fe62Co9.5RE3.5B25 amorphous alloys exhibit good soft magnetic properties of 1.35 to 1.43 T for saturation magnetization, 1.0 to 3.8 Am for coercive force, and 8300 to 12500 for permeability at 1 kHz in the annealed state for 600s at 773 K. The synthesis of the (Fe, Co)-RE-B amorphous alloys exhibiting a large supercooled liquid region and good soft magnetic properties with a high saturation magnetization is promising for future development as a new type of soft magnetic material.
引用
收藏
页码：1142 / 1145
页数：4
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