两种处理工艺下Ｆｅ７８Ｓｉ９Ｂ１３非晶薄带的磁致伸缩系数

doi:10.3696/j.issn.1672-6952.2012.04.024

辽宁石油化工大学学报 ›› 2012, Vol. 32 ›› Issue (4): 92-94.DOI: 10.3696/j.issn.1672-6952.2012.04.024

两种处理工艺下Ｆｅ_７８Ｓｉ_９Ｂ_１３非晶薄带的磁致伸缩系数

郭　红，陈明明

辽宁石油化工大学理学院，辽宁抚顺１１３００１

收稿日期:2012-03-19 出版日期:2012-12-20 发布日期:2017-07-06
作者简介:郭红（１９５７－），女（满），辽宁抚顺市，教授，博士。

Magnetostriction Coefficient of Amorphous Fe₇₈Si₉B₁₃ Under Two Distinctive Treatment

GUO Hong, CHEN Ming-ming

School of Sciences,Liaoning Shihua University, Fushun Liaoning 113001, P.R.China

Received:2012-03-19 Published:2012-12-20 Online:2017-07-06

摘要/Abstract

摘要： 采用低频脉冲磁场和等温退火工艺分别对非晶合金Ｆｅ_７８Ｓｉ_９Ｂ_１３样品进行处理，用自制磁致伸缩测量系统对处理前后样品的磁致伸缩系数进行测量。实验结果表明，两种处理工艺都使样品的饱和磁致伸缩系数λｓ减小，饱和磁致伸缩系数与退火时间ｔ有关，在３００℃温度下等温退火４０ｍｉｎ，样品的饱和磁致伸缩系数最小，其值为４９．５２×１０^－５。饱和磁致伸缩系数λｓ与低频脉冲磁场强度Ｈｐ为非线性关系，饱和磁致伸系数λｓ对脉冲磁场处理参数有所选择，当Ｈｐ为１９　９００Ａ／ｍ、脉冲频率ｆ为３０Ｈｚ、ｔ为２４０ｓ时，饱和磁致伸缩系数最小，其值为２．７０×１０^－５。低频脉冲磁场处理对样品的饱和磁致伸缩系数的影响明显大于等温退火。

关键词: 磁致伸缩系数, 　非晶合金, 　低频脉冲磁场, 　等温退火

Abstract:

Amorphous alloy sample Fe₇₈Si₉B₁₃ is disposed by low frequency pulsating magnetic field and isothermic annealing, measuring magnetostriction coefficient by self-made magnetostriction coefficient measuring system. Results showed that both treatment process decreased the saturation magnetostriction coefficient λ_s of sample, λ_s is related with annealing time t and it reached minimal value 4.952×10^-5 when annealing under 300℃ for 40min. Saturation magnetostriction coefficient λs and low-frequency pulsed magnetic field strength Hp is nonlinear relationship, λ_s has a choice on the disposing parameters of pulsed magnetic field, λs reach minimal value 2.70×10^-5 when Hp equals to 19 900 A/m, pulsing frequency equals to 30Hz and processing time t equals to 240s. The impact of saturation magnetostriction coefficient by low frequency pulsed magnetic field is significantly greater than annealing.

Key words: Magnetostriction coefficient , Amorphous alloys , Low-frequency pulsed magnetic field , Isothermic annealing.

郭　红，陈明明. 两种处理工艺下Ｆｅ_７８Ｓｉ_９Ｂ_１３非晶薄带的磁致伸缩系数[J]. 辽宁石油化工大学学报, 2012, 32(4): 92-94.

GUO Hong, CHEN Ming-ming.

Magnetostriction Coefficient of Amorphous Fe₇₈Si₉B₁₃ Under Two Distinctive Treatment

[J]. Journal of Liaoning Petrochemical University, 2012, 32(4): 92-94.

[1]	崔玉广. 脉冲磁场处理非晶合金产生的纳米晶化相的磁伸性质[J]. 辽宁石油化工大学学报, 2012, 32(2): 91-94.
[2]	崔玉广. 脉冲磁场处理工艺对非晶合金磁致伸缩系数的影响[J]. 辽宁石油化工大学学报, 2011, 31(2): 77-79.

两种处理工艺下Ｆｅ_７８Ｓｉ_９Ｂ_１３非晶薄带的磁致伸缩系数

Magnetostriction Coefficient of Amorphous Fe₇₈Si₉B₁₃ Under Two Distinctive Treatment

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两种处理工艺下Ｆｅ_７８Ｓｉ_９Ｂ_１３非晶薄带的磁致伸缩系数

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