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铁基非晶的低频脉冲磁场处理效应
引用本文:晁月盛,李明扬,耿岩,刘吉刚.铁基非晶的低频脉冲磁场处理效应[J].物理学报,2004,53(10):3453-3456.
作者姓名:晁月盛  李明扬  耿岩  刘吉刚
作者单位:东北大学理学院,沈阳 110004
基金项目:国家高技术研究发展计划(批准号:2002AA302601)和高等学校博士学科点专项科研基金(批准号:20020145009) 资助的课题.
摘    要:对非晶合金Fe78 Si9 B13进行了低频脉冲磁场处理,用穆斯堡尔谱学、透射电 镜等方法观察处理试样的微观结构变化.研究发现,当脉冲频率20—25Hz,磁场16—32kA/m,作用时间≤2min,合金发生了纳米晶化,纳米相岐睩e(Si)晶粒尺寸为10nm. 而且,在低频脉冲磁场处理过程中,非晶试样的温升≤20℃. 关键词: 非晶态合金 脉冲磁场处理 纳米晶化

关 键 词:非晶态合金  脉冲磁场处理  纳米晶化
收稿时间:2003-10-29

Effect of pulsed magnetic field on the Fe-based amorphous alloys
Chao Yue-Sheng,Li Ming-Yang,Geng Yan and Liu Ji-Gang.Effect of pulsed magnetic field on the Fe-based amorphous alloys[J].Acta Physica Sinica,2004,53(10):3453-3456.
Authors:Chao Yue-Sheng  Li Ming-Yang  Geng Yan and Liu Ji-Gang
Abstract:Amorphous Fe78 Si9 B13alloys have been treated by pulsed magnetic field with lowe r frequency. The macrostructural change of amorphous specimens after treatment were observed by mssbauer spectroscopy and TEM etc.This investigation show that nanocrystallization of amorpous Fe78 Si9 B13occurs under the con ditions: pulsed fiel d 16—32kA/m,pulse frequency 20—25 Hz,acting time ≤2min. The grain size of nano crystalline phase Fe(Si) is about 10nm. And, the temperature rise of specimens during the course of the application of pulsed magnetic field is very low(ΔΤ≤20℃).
Keywords:amorphous alloy  pulse magnetic field treatment  nanocrystallization
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