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材料工程  2016, Vol. 44 Issue (8): 46-50    DOI: 10.11868/j.issn.1001-4381.2016.08.008
  材料与工艺 本期目录 | 过刊浏览 | 高级检索 |
热处理对(Fe0.52Co0.30Ni0.18)73Cr17Zr10非晶合金的组织结构及磁性能的影响
谢春晓1, 钟守炎1, 杨元政2, 罗剑英1, 廖梓龙1
1. 东莞理工学院 机械工程学院, 广东 东莞 523808;
2. 广东工业大学 材料与能源学院, 广州 510006
Effects of Heat Treatment on Microstructure and Magnetic Properties of (Fe0.52Co0.30Ni0.18)73Cr17Zr10 Amorphous Alloy
XIE Chun-xiao1, ZHONG Shou-yan1, YANG Yuan-zheng2, LUO Jian-ying1, LIAO Zi-long1
1. School of Mechanical Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China;
2. Faculty of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
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摘要 采用单辊急冷法制备(Fe0.52Co0.30Ni0.1873Cr17Zr10非晶薄带,并对该合金进行等温退火。采用XRD,AFM,VSM研究退火温度对(Fe0.52Co0.30Ni0.1873Cr17Zr10非晶合金的组织结构和磁性能的影响。结果表明:非晶合金晶化过程为Am→α-Fe(Co)+Am’→α-Fe(Co)+Cr2Ni3+Fe3Ni2+Cr2Zr+未知相。当退火温度Ti<玻璃转变温度Tg时,由于结构弛豫、内应力的释放,合金的饱和磁化强度Ms有所提高;当晶化起始温度Tx < Ti < 第一晶化峰值温度Tp1时,由于铁磁性α-Fe(Co)相的析出,Ms显著提升;当Ti>Tp1时,由于晶粒长大和第二相的析出,Ms急剧恶化,565℃退火能够获得最好磁性能(Ms=106.8A·m2·kg-1)。490℃和565℃退火后薄带表面的AFM观察表明,AFM图片所呈现的颗粒尺寸要比用Scherrer法测得的α-Fe(Co)纳米晶尺寸大得多,这是典型的包裹晶粒现象。
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谢春晓
钟守炎
杨元政
罗剑英
廖梓龙
关键词 Fe基非晶合金热处理组织结构磁性能    
Abstract:(Fe0.52Co0.30Ni0.18)73Cr17Zr10 amorphous ribbons were prepared by melt-spun method and annealed at different temperatures. X-ray diffraction, atomic force microscopy and vibrating sample magnetometer were adopted to study the effect of annealing temperature on the microstructure and magnetic properties of this alloy.The results show that the crystallization process of this alloy is amorphous→α-Fe(Co)+amorphous'→α-Fe(Co)+Cr2Ni3+Fe3Ni2+Cr2Zr+ unidentified phase. When annealing temperature Ti is lower than Tg, the Ms increases slightly as a result of relaxation of the internal stress of the as-quenched amorphous alloy. When Ti is in between Tx and Tp1, the Ms significantly increases due to the partial crystallization of amorphous precursors to create a homogeneous distribution of α-Fe(Co) nanocrystals within a residual amorphous matrix. When Ti is higher than Tp1, the Ms drops rapidly, which may be caused by the grain growth and the formation of paramagnetic phase. This alloy after annealed at 565℃ has the best magnetic property(Ms=106.8A·m2·kg-1). The results of AFM observation show that in the annealed amorphous ribbons the grain size measured from AFM graphs is much larger than that of the α-Fe(Co) nanocrystal size caculated by Scherrer method, which is a typical phenomenon of coated grain.
Key wordsFe-based amorphous alloy    heat treatment    microstructure    magnetic property
收稿日期: 2014-11-02      出版日期: 2016-08-23
中图分类号:  TG139.8  
通讯作者: 谢春晓(1981-),男,讲师,博士,主要从事非晶态合金的制备、结构及性能方面的研究工作,联系地址:广东省东莞市松山湖区大学路1号东莞理工学院机械学院办公室(523808),xiechx@dgut.edu.cn     E-mail: xiechx@dgut.edu.cn
引用本文:   
谢春晓, 钟守炎, 杨元政, 罗剑英, 廖梓龙. 热处理对(Fe0.52Co0.30Ni0.18)73Cr17Zr10非晶合金的组织结构及磁性能的影响[J]. 材料工程, 2016, 44(8): 46-50.
XIE Chun-xiao, ZHONG Shou-yan, YANG Yuan-zheng, LUO Jian-ying, LIAO Zi-long. Effects of Heat Treatment on Microstructure and Magnetic Properties of (Fe0.52Co0.30Ni0.18)73Cr17Zr10 Amorphous Alloy. Journal of Materials Engineering, 2016, 44(8): 46-50.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.08.008      或      http://jme.biam.ac.cn/CN/Y2016/V44/I8/46
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