FeCoNiSiB非晶合金感生各向异性对磁性能的影响

doi:10.13251/j.issn.0254-6051.2021.10.009

摘要/Abstract

摘要： 研究了恒温张力退火和横磁退火工艺对FeCoNiSiB非晶合金各向异性及磁性能的影响。结果表明,合金经恒温张力退火后表现出高直流偏置性能和高损耗的特点,而经横磁退火后具有优异的综合软磁性能,即具有高直流偏置能力的同时具有低损耗的特点。其中,恒温张力退火过程中提高退火温度时合金直流偏置能力增加,550 ℃下张力退火5 min的直流偏置场强度H_0.98为195 A/m,对应的损耗值P_cm为7255 W/kg;而经450 ℃横磁退火后,合金直流偏置场强度H_0.98可达374 A/m,对应的损耗值P_cm仅为200 W/kg。除此之外,经恒温张力退火和横磁退火后FeCoNiSiB非晶合金内部均形成180°条形磁畴结构,但其磁化矢量方向分别平行和垂直于磁化方向。

关键词: 非晶纳米晶合金, 张力退火, 磁场退火, 磁性能, 各向异性

Abstract: Effects of isothermal tension annealing and transverse magnetic field annealing on anisotropy and magnetic properties of FeCoNiSiB amorphous alloy were investigated. The results show that the alloy exhibits higher DC tolerance property accompanied with higher core loss after isothermal tension annealing, while the alloy has excellent comprehensive soft magnetic properties including high DC tolerance and low core loss after transverse magnetic field annealing. During isothermal tension annealing process, the DC tolerance property of the alloy is improved with the increase of annealing temperature. After annealing at 550 ℃ for 5 min with tensile stress, the DC-bias field intensity H_0.98 of the alloy is 195 A/m and the corresponding core loss P_cm is 7255 W/kg. However, after annealing at 450 ℃ with transverse magnetic field, the DC-bias field intensity H_0.98 is improved to 374 A/m, and the corresponding core loss P_cm is only 200 W/kg. In addition, the 180° stripe magnetic domain structures are charactered after isothermal tension annealing and transverse magnetic field annealing, but the direction of magnetization vector in magnetic domain is parallel and perpendicular to the direction of magnetization respectively.

Key words: amorphous/nanocrystalline alloy, tension annealing, magnetic field annealing, magnetic property, anisotropy

中图分类号:

TG156.21

刘天成, 潘贇, 李广敏, 敫立国, 崔克胜. FeCoNiSiB非晶合金感生各向异性对磁性能的影响[J]. 金属热处理, 2021, 46(10): 53-57.

Liu Tiancheng, Pan Yun, Li Guangmin, Jiao Liguo, Cui Kesheng. Effect of induced anisotropy on magnetic properties of FeCoNiSiB amorphous alloy[J]. Heat Treatment of Metals, 2021, 46(10): 53-57.

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