| Fe_(78)Si_9B_(13)非晶合金的恒导磁性能 |
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| 引用本文： | 支起铮,陈文智,姜振春,何开元.Fe_(78)Si_9B_(13)非晶合金的恒导磁性能[J].东北大学学报(自然科学版),2005,26(12):1153-1156. |
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| 作者姓名： | 支起铮 陈文智 姜振春 何开元 |
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| 作者单位： | 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 |
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| 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.
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| 关 键 词： | 非晶合金 晶化 磁性 恒导磁性 FeSiB合金 |
| 文章编号： | 1005-3026（2005）12-1153-04 |
| 收稿时间： | 2005-02-27 |
| 修稿时间： | 2005年2月27日 |
Constant Permeability of Amorphous Fe78Si9B13 Alloy |
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| ZHI Qi-zheng,CHEN Wen-zhi,JIANG Zhen-chun,HE Kai-yuan.Constant Permeability of Amorphous Fe78Si9B13 Alloy[J].Journal of Northeastern University(Natural Science),2005,26(12):1153-1156. |
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| Authors: | ZHI Qi-zheng CHEN Wen-zhi JIANG Zhen-chun HE Kai-yuan |
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| Institution: | (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) National Amorphous and Nanocrystalline Alloy Engineering Research Center, Central Iron and Steel Research Institute, Beijing 100081, China |
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| Abstract: | 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 crystalline α-Fe(Si) phase precipitates, the induced magnetic anisotropy forms, of which the easy magnetization direction is perpendicular to the alloy ribbon surface. A good constant permeability is provided for the alloy if annealed at 470°C for 120 min or 480°C for 60 min. According to the relation of residual induction ratio Br/B800 to annealing temperature/time, the influence of crystallization behavior in the alloy's surface layer and matrix on transversely induced magnetic anisotropy resulting from magnetoelastic coupling was also discussed. |
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| Keywords: | amorphous alloy crystallization magnetic property constant permeability FeSiB alloy |
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