吉林大学学报(理学版)

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热处理对Fe40Co40Zr7V2B9Ta2合金微观结构及磁性能的影响

董延华1,2, 曾轩1, 刘尧棣3, 王丽丽3, 华中3   

  1. 1. 吉林师范大学 计算机学院, 吉林 四平 136000; 2. 哈尔滨工业大学 电子与信息工程学院, 哈尔滨 150001;3. 吉林师范大学 功能材料物理与化学教育部重点实验室, 吉林 四平 136000
  • 收稿日期:2013-04-01 出版日期:2014-03-26 发布日期:2014-03-20
  • 通讯作者: 华中 E-mail:huazhong196110@163.com

Effect of Heat Treatment on the Microstructure andMagnetic Property of Fe40Co40Zr7V2B9Ta2 Alloy

DONG Yanhua1,2, ZENG Xuan1, LIU Yaodi3, WANG Lili3, HUA Zhong3   

  1. 1. College of Computer, Jilin Normal University, Siping 136000, Jilin Province, China;2. Collge of Electronics and Communication Engineering, Harbin Industrial Technology University,Harbin 150001, China; 3. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, Jilin Province, China
  • Received:2013-04-01 Online:2014-03-26 Published:2014-03-20
  • Contact: HUA Zhong E-mail:huazhong196110@163.com

摘要:

采用单辊快淬法制备Fe40Co40Zr7V2B9Ta2非晶合金薄带, 并对该合金在不同温度下进行热处理. 利用差热分析(DTA)、 X射线衍射(XRD)、 扫描电镜(SEM)和振动样品磁强计(VSM)测量合金的热性能、 微观结构及磁性能. 结果表明: Fe40Co40Zr7V2B9Ta2合金的初始晶化产物为α-FeCo相, 高温时析出ZrCo3B2,Co23Zr6和ZrB2相; 薄带横断面的形貌在快淬态和300 ℃退火后, 合金的自由面呈网状结构, 贴辊面呈枝状结构; 高于550 ℃退火, 横断面呈颗粒状; 550 ℃退火后合金的矫顽力(Hc)最小, 高于550 ℃退火, Hc随退火温度的升高而增大.

关键词: 晶化, 横断面, 形貌, 磁性能

Abstract:

Amorphous Fe40Co40Zr7V2B9Ta2 ribbons were prepared by single roller meltspinning and annealed at different temperatures. The thermal property, microstructure and magnetic property of the samples were investigated by differential thermal analysis (DTA), Xray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometric (VSM) analysis. The initial crystallization product of Fe40Co40Zr7V2B9Ta2was an α-FeCo phase. ZrCo3B2,Co23Zr6 and ZrB2 phases were then precipitated at high temperatures. From the appearance of the cross section, the free area showed a mesh structure and the contact area showed a dendritic structure in the Fe40Co40Zr7V2B9Ta2 alloy when it was quenched and annealed at 300 ℃. [JP2]When the alloy was annealed at above 550 ℃, the cross section showed the granular structure. Hc of Fe40Co40Zr7V2B9Ta2 alloy annealed at 550 ℃ is minimum. Hc increased with the increase of annealing temperature above 550 ℃

Key words: crystallization, cross section, appearance, magnetic property

中图分类号: 

  • O469