| 回火对应力退火Fe基薄带磁各向异性的影响 |
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| 引用本文： | 严维燕,方允樟,马云,何佳,何兴伟,柳渊,杨晓红.回火对应力退火Fe基薄带磁各向异性的影响[J].浙江师范大学学报(自然科学版),2012(4):411-414. |
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| 作者姓名： | 严维燕 方允樟 马云 何佳 何兴伟 柳渊 杨晓红 |
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| 作者单位： | [1]浙江师范大学数理与信息工程学院,浙江金华321004 [2]金华职业技术学院,浙江金华321007 |
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| 基金项目： | 国家自然科学基金资助项目（50871104）;浙江省自然科学基金资助项目（Y6110246）;浙江省大学生科技创新活动计划项目（2010R404025） |
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| 摘 要： | 对应力退火的Fe基纳米晶薄带进行540℃回火处理,采用HP4294A型阻抗分析仪测量回火不同次数样品的纵向驱动巨磁阻抗(LDGMI)曲线.对系列LDGMI曲线特征与回火次数的关系进行分析,结果表明:回火释放了Fe基纳米晶薄带应力退火导致非晶基体滞弹性形变而引入的拉应力,使得样品的磁各向异性场减小.经过7次回火处理,应力退火感生的磁各向异性场从2 632.29 A/m减小到1 139.39 A/m.
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| 关 键 词： | 纳米晶 巨磁阻抗效应 应力退火 回火 磁各向异性 |
Influence of tempering on magnetic anisotropy of stress-annealed Fe-based ribbons |
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| YAN Weiyan,FANG Yunzhang,MA Yun,HE Jia,HE Xingwei,LIU Yuan,YANG Xiaohong.Influence of tempering on magnetic anisotropy of stress-annealed Fe-based ribbons[J].Journal of Zhejiang Normal University Natural Sciences,2012(4):411-414. |
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| Authors: | YAN Weiyan FANG Yunzhang MA Yun HE Jia HE Xingwei LIU Yuan YANG Xiaohong |
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| Institution: | 1. College of Mathematics, Physics and Information Engineering, Zhejiang Normal University, Jinhua Zhejiang 321004, China; 2. Jinhua Col- lege of Profession and Technology, Jinhua Zhejiang 321007, China) |
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| Abstract: | The Fe-based nanocrystalline ribbons annealed under tensile stress were tempered by different times at the temperature of 540 ℃. The longitudinally driven giant magneto-impedance effect in the Fe-based nano- crystalline ribbons were measured with HP4294A impedance analyzer. The results from analyzing the relation- ship between tempering numbers and the characteristic of Fe-based ribbons LDGMI curves showed that, tem- pering released the residual elastic strain due to applied tensile stress and made the anisotropy field decreased. After 7 times tempering, it changed from 2 632.29 A/m to 1 139.39 A/m. The study presented important sci- entific value on the mechanism of stress-induced magnetic anisotropy. |
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| Keywords: | nanocrystalline giant magneto-impedance effect stress annealing tempering magnetic anisot- ropy |
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