任科智,谭晓华,徐晖,侯雪玲,李荷芸,梁扬,鲁波.快淬参数对Nd9.5Fe84B6.5合金磁性能和微观结构的影响[J].稀有金属材料与工程,2018,47(10):3208~3212.[Ren Kezhi,Tan Xiaohua,Xu Hui,Hou Xueling,Li Heyun,Liang Yang,Lu Bo.Effect of quenching parameters on magnetic property and microstructure of the Nd9.5Fe84B6.5 alloy[J].Rare Metal Materials and Engineering,2018,47(10):3208~3212.]
快淬参数对Nd9.5Fe84B6.5合金磁性能和微观结构的影响
投稿时间:2016-12-21  修订日期:2017-03-03
中文关键词:  稀土永磁材料  熔体快淬参数  磁性能  微观结构
基金项目:国家自然科学基金资助(项目号51471101)
中文摘要:
      本文采用直接快淬法制备了Nd9.5Fe84B6.5合金,研究了腔室压力和甩带速度这两个快淬参数对其磁性能和微观结构的影响,建立了两者之间的关联性。研究发现:熔体快淬过程中在其它条件保持不变时,腔室压力和甩带速度之间存在着互相补偿的关系。腔室压力为0.03 MPa、快淬速度为19 m/s时制备的条带样品与腔室压力为0.05 MPa、快淬速度为15 m/s时制备的样品厚度和磁性能的数值相近。X 射线衍射和透射电子显微镜的结果表明:这两种条件下得到的条带样品具有相同的相组成和相似的微观结构。因此,通过调整腔室压力和甩带速度可以得到微观结构和磁性能相近的条带样品,这将为制备高性能的稀土永磁材料及其工业化生产提供指导。
Effect of quenching parameters on magnetic property and microstructure of the Nd9.5Fe84B6.5 alloy
英文关键词:rare earth permanent magnets  quenching parameters  magnetic property  microstructure
英文摘要:
      The Nd9.5Fe84B6.5 ribbons were prepared by melt-spinning. The effects of the chamber pressure and wheel speed on the magnetic property and microstructure of the Nd9.5Fe84B6.5 alloy were investigated. A complementary relationship between the chamber pressure and the wheel speed in rapid solidification of melt-spinning is proposed. The values of thickness and magnetic property in the ribbon sample prepared at the chamber pressure of 0.03 MPa and the wheel speed of 19 m/s are similar to that in the ribbon prepared at the chamber pressure of 0.05 MPa and the wheel speed of 15 m/s. XRD and TEM results show that the ribbons prepared at two conditions have same phase constitution and similar microstructure. Our work indicate that the melt-spun Nd9.5Fe84B6.5 ribbons with similar magnetic property and microstructure are obtained by controlling the chamber pressure and the wheel speed in rapid solidification, which can be used to serve as a guide in achieving permanent materials with good magnetic property in mass production.
作者单位E-mail
任科智 材料研究所 kezhiren0920@163.com 
谭晓华 材料研究所 tanxiaohua123@163.com 
徐晖 材料研究所 huixu8888@shu.edu.cn 
侯雪玲 材料研究所  
李荷芸 材料研究所  
梁扬 材料研究所  
鲁波 材料研究所  
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