Fe_(78)Si_9B_(13)非晶合金的恒导磁性能  

Constant Permeability of Amorphous Fe_(78)Si_9B_(13) Alloy

作　　者：支起铮[1] 陈文智[2] 姜振春[1] 何开元[1] 

机构地区：[1]东北大学信息科学与工程学院,辽宁沈阳110004 [2]钢铁研究总院国家非晶微晶合金工程技术研究中心,北京100081

出　　处：《东北大学学报（自然科学版）》2005年第12期1153-1156,共4页Journal of Northeastern University(Natural Science)

基　　金：国家科委'十五'科技攻关项目(2001BA310A03)

摘　　要：研究了普通退火对Fe78Si9B13非晶合金磁性能的影响.实验发现:当合金内有适当数量的-αFe(Si)晶体相析出时,可形成感生磁各向异性,易磁化方向与带面垂直.经470℃×120 min和480℃×60 min退火后合金呈现良好的恒导磁特性.根据剩磁比Br/B800随退火温度和时间变化的规律,讨论了-αFe(Si)晶体相在表面层和基体内的晶化过程对源于磁弹性耦合作用的横向感生磁各向异性的影响:表面层的先期晶化促进横向感生磁各向异性形成;基体内晶体相析出减弱磁弹性耦合作用.The effect of normal annealing process on the magnetic properties of amorphous Fe78Si9B13 alloy was investigated experimentally. It was found that when a moderate amount of erystalline α-Fe（Si） phase precipitates, the indueed magnetic anisotropy forms, of whieh the easy magnetization direction is perpendieular to the alloy ribbon surface. A good constant permeability is provided for the alloy if annealed at 470 ℃ for 120min or 480 ℃ for 60min. According to the relation of residual induetion ratio Br/B800 to annealing temperature/time＇, the influence of crystallization behavior in the alloy＇ s surface layer and matrix on transversely indueed magnetie anisotropy resulting from magnetoelastie coupling was also discussed.

关 键 词：非晶合金 晶化 磁性 恒导磁性 FeSiB合金 

分 类 号：TB383[一般工业技术—材料科学与工程]