Excellent high-temperature magnetic softness in a wide temperature for FeCo-based nanocrystalline alloy

被引：15

作者：

Han, Ying ^{[1
]}

Wang, Zhi ^{[1
]}

机构：

[1] Tianjin Univ, Sch Sci, Tianjin 300072, Peoples R China

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2016年 / 434卷

基金：

中国国家自然科学基金;

关键词：

FeCo-based alloy; Nanocrystalline materials; Soft magnetic properties; Temperature dependence of permeability; FEALSIBNBCU ALLOYS; B ALLOYS; SI; DEPENDENCE; CO; CU;

D O I：

10.1016/j.jnoncrysol.2015.12.014

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Structure and initial permeability (mu(i)) of as-quenched and annealed (Fe-1 (-) Co-x(x))(72.7)Al0.8Si17.5B5Cu1Nb3 (x = 0,0.5) alloys were investigated. Substituting 50 at.% Co for Fe enhances both the Curie temperature of amorphous alloy, T-c(A), from 325 to 375 degrees C and the secondary crystallization temperature Tom, for delaying the formation of Fe-B hard magnetic phase from 720 degrees C to 729 degrees C. The correlation between initial permeability and temperature (mu(i)-T curve) for (Fe0.5Co0.5)(72.7)Al0.8Si17.5B5Cu1Nb3 alloys heating-cooling cycled at 510-640 degrees C was mainly analyzed. The optimum high temperature magnetic softness was found in 550 degrees C-annealed sample, the mu(i) can maintain above 1400 and shows roughly a horizontal linear correlation with T from room temperature up to 600 degrees C, which make this alloy attractive as an affordable high-temperature soft magnetic material. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：92 / 95

页数：4

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