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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(英文),2018,47(10):3208~3212.[Ren Kezhi,Tan Xiaohua,Xu Hui,Hou Xueling,Li Heyun,Liang Yang and 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.]
Effect of quenching parameters on magnetic property and microstructure of the Nd9.5Fe84B6.5 alloy
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Received:December 21, 2016  Revised:March 03, 2017
DOI:
Key words: rare earth permanent magnets  quenching parameters  magnetic property  microstructure
Foundation item:国家自然科学基金资助(项目号51471101)
Author NameAffiliation
Ren Kezhi,Tan Xiaohua,Xu Hui,Hou Xueling,Li Heyun,Liang Yang and Lu Bo  
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Abstract:
      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.