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[1]戚植奇,喻玺,杜君峰,等.Nd取代对Pr-Nd-Fe-B烧结磁体耐腐蚀性的影响[J].有色金属科学与工程,2018,(01):77-79,104.[doi:10.13264/j.cnki.ysjskx.2018.01.013]
 QI Zhiqi,YU Xi,DU Junfeng,et al.Effect of Nd Substitution for sintered Pr-Nd-Fe-B magnet corrosion resistance[J].,2018,(01):77-79,104.[doi:10.13264/j.cnki.ysjskx.2018.01.013]
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Nd取代对Pr-Nd-Fe-B烧结磁体耐腐蚀性的影响(/HTML)
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《有色金属科学与工程》[ISSN:1674-9669/CN:36-1311/TF]

卷:
期数:
2018年01期
页码:
77-79,104
栏目:
出版日期:
2018-01-30

文章信息/Info

Title:
Effect of Nd Substitution for sintered Pr-Nd-Fe-B magnet corrosion resistance
作者:
戚植奇1喻玺1杜君峰12王亮亮1刘滨1庞再升1李家节3王公平4
1.赣州富尔特电子股份有限公司, 江西 赣州 341000;2.江西省稀土永磁材料及器件工程研究中心, 江西 赣州 341000;3.江西理工大学工程研究院, 江西 赣州 341000;4.江西师范大学物理与通信电子学院, 南昌 330022
Author(s):
QI Zhiqi1 YU Xi1 DU Junfeng12 WANG Liangliang1 LIU Bin1PANG Zaisheng1 LI Jiajie3 WANG Gongping4
1. Ganzhou Fortune Electronic Co., Ltd, Ganzhou 341000, China; 2. Research Center for Rare Earth Permanent Magnet Materials and Devices Engineering of Jiangxi Province , Ganzhou 341000, China; 3.Institute of Engineering and Research, Jiangxi Universit
关键词:
烧结Pr-Nd-Fe-B磁体耐腐蚀性失重动电位极化曲线
分类号:
TM271.3;TF123.1
DOI:
10.13264/j.cnki.ysjskx.2018.01.013
文献标志码:
A
摘要:
以HAST加速寿命试验后磁体失重,以及在不同腐蚀介质中磁体动电位极化曲线为表征,研究稀土元素Nd取代Pr对烧结Pr-Nd-Fe-B磁体耐腐蚀性的影响. 结果表明:用Nd完全取代Pr后,磁体失重减小,室温下在0.1 mol/L HCl溶液、3.0 % NaOH溶液、3.5 % NaCl溶液中腐蚀电位不同程度地正移,表明磁体耐腐蚀性得到改善. 通过场发射扫描电子显微镜观察HAST试验后磁体的微观组织形貌发现,Nd取代Pr后,晶界分布变得更加连续、清晰,且晶界交隅处的富稀土相含量减少,从而延缓了晶界腐蚀速率,使磁体的总体耐腐蚀性得到提升.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-09-20
基金项目:江西省科技合作领域重点研发计划项目(20161BBH80010)
通信作者:戚植奇(1986- ),男,助理工程师,主要从事烧结钕铁硼永磁材料生产与技术工艺研究,E-mail:279896804@qq.com.
更新日期/Last Update: 2018-01-30