湖北汽车工业学院学报2025，Vol.39Issue(1)：68-71,4.DOI:10.3969/j.issn.1008-5483.2025.01.013
热变形Nd-Fe-B磁体Pr68Cu32合金的晶界扩散研究
Grain Boundary Diffusion Process of Pr68 Cu32 Alloy for Hot-Deformed Nd-Fe-B Magnet
摘要
Abstract
The Pr68Cu32 alloy ribbons with low melting points were prepared,and the influence of the grain boundary diffusion process(GBDP)on the properties of hot-deformed Nd-Fe-B magnet was in-vestigated.The coercivity mechanism was analyzed.The experimental results show that optimum proper-ties of the magnet can be achieved when the hot-deformed Nd-Fe-B magnet and Pr68Cu32 alloy ribbons are diffused at 500℃for 1 h.The coercivity,remanence,and magnetic energy product of the magnet are 1336 kA·m-1,1.26 T,and 286 kJ·m-3.The maximum coercivity of 1746 kA·m-1 can be achieved af-ter diffusion at 580 ℃ for 3 h,an increase of 80%compared with the original coercivity of the magnet.After GBDP,the temperature stability of the magnet is improved,and the coercivity mechanism is con-sidered to be the pinning mechanism.关键词
晶界扩散/热变形Nd-Fe-B/磁性能Key words
grain boundary diffusion process/hot-deformed Nd-Fe-B/properties of magnet分类
信息技术与安全科学引用本文复制引用
汪洋,黄有林..热变形Nd-Fe-B磁体Pr68Cu32合金的晶界扩散研究[J].湖北汽车工业学院学报,2025,39(1):68-71,4.基金项目
安徽省高校重点科研项目(2022AH052242) （2022AH052242）
合肥职业技术学院自然科学研究资助项目(2024KJA02) （2024KJA02）
