（Ce20Nd80）31FebalB1M磁体腐蚀产物多样性的研究

doi:10.13228/j.boyuan.issn1006-6543.20160057

Abstract
Figure/Table
References
Related Citation (0)

Download: PDF (0 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The （Ce20Nd80）31FebalB1M magnets prepared by double main phase powder sintering process were corroded in highly accelerated stress test system. The corrosion morphology was observed and analyzed by EDS energy spectrum. Results show that the corrosion products are bobbles-like and ball-like after corroded for 24 h. The bobbles-like product is mainly rare earth oxide， which evolves into flocculent with the increase of etching time. While the ball-like product is mainly iron oxide， which partially falls off with the increase of etching time， and the remaining corroded particles are concluded on the substrate， preventing further corrosion to some extent.

Key words： Double main phase sintering process NdFeB magnet Corrosion

Received: 16 May 2016 Published: 14 November 2017

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	WU Ya-Ping
	ZHU Ming-Gang
	SHI Xiao-Ning
	SONG Li-Wei
	PAN Wei

Cite this article:

WU Ya-Ping,ZHU Ming-Gang,SHI Xiao-Ning, et al. Study on the diversity of corrosion products of （Ce20Nd80）31FebalB1M magnet[J]. , 2017, 27(05): 36-40.

URL:

http://edit.chinamet.cn/Jweb_fmyjgy/EN/10.13228/j.boyuan.issn1006-6543.20160057 OR http://edit.chinamet.cn/Jweb_fmyjgy/EN/Y2017/V27/I05/36

[1]G.W. Warren, G. Gao, Q. Li.. Corrosion of NdFeB permanent magnet materials [J].Journal of Applied Physics, 1991, 70:6609-6609 [2]Shu lin Huang, Hai bo Feng, Ming gang Zhu, An Hua Li, Yan Feng Li, Ya Chao Sun, Yue Zhang, Wei Li.Optimal design of sintered Ce9Nd21FebalB1 magnets with a low-melting-point (Ce,Nd)-rich phase[J].International Journal of Minerals, Metallurgy and Materials, 2015, 22(4):417-421 [3]Huang Shulin.The research of microstructure and magnetic properties of Ce-containing magnets[D]. Beijing: School of Materials Science and Engineering University of Science and Technology Beijing, 2015. [4]黄书林.含Ce磁体微结构与磁性能的研究[D]. 北京: 北京科技大学材料科学与工程学院, 2015. [5]Zhu Minggang, Fang Yikun, Li Wei.Microstructures and Coercivity Mechanism of High Performance Composite Nd-Fe-B Permanent Magnets[J].Materials China, 2013, 32(3):69-70 [6]朱明刚, 方以坤, 李卫.高性能Nd-Fe-B复合永磁材料微磁结构与矫顽力机制[J].中国材料进展, 2012, 32(3):69-70 [7]Ming gang Zhu, Wei Li, Jingdai Wang, Li Yun Zheng, Yan Feng Li, Hai Bo Feng, Tao Liu.Influence of Ce Content on the Rectangularity of Demagnetization Curves and Magnetic Properties of Re-Fe-B Magnets Sintered by Double Main Phase Alloy Method[J].IEEE Transactions on Magnetics, 2014, 50(1):1000104-1000104 [8]Yue Ming, Liu Weiqiang, Wang Gongping, et al.Corrosion behavior and research progress of NdFeB permanent magnet alloys[J].Functional Materials, 2004, 35:492-495 [9]岳明, 刘卫强, 王公平, 张久兴.烧结NdFeB永磁合金的腐蚀行为研究及进展[J].功能材料, 2004, 35:492-495 [10]Gaolin Yan, P. J. McGuiness, J. P. G. Farr, I. R.. Harris. Environmental degradation of NdFeB magnets[J].Journal of Alloys and Compounds, 2009, 478:188-192 [11]Kalyan Chitrada, Krishnan S. Raja, Batric Pesic, Indrajit Charit..Corrosion Behavior of Surface Modified NdFeB Permanent Magnet in Dilute Chloride Environments[J].Electrochimica Acta, 2014, 123:23-32 [12]Ding Yong, Chen Renjie, Yan Aru, et al.Progress of Sintered NdFeB Magnets with Low Weight Loss[J].Chinese Journal of Rare Materials, 2010, 34(1):145-149 [13]丁勇, 陈仁杰, 闫阿儒, 李东.低失重烧结钕铁硼磁体的研究进展[J].稀有金属, 2010, 34(1):145-149 [14]Kong Xiangwei, Liu Guozheng, Zhao Mingjing, et al.Research Status of Corrosion Property of Sintered NdFeB Permanent Magnet[J].Chinese Rare Earths, 2013, 34(6):69-69 [15]孔祥微, 刘国征, 赵明静, 赵瑞金, 鲁富强, 武斌.烧结永磁体的腐蚀性研究现状[J].稀土, 2013, 34(6):69-69 [16]Wu Yaping, Zhu Minggang, Shi Xiaoning, et al.Corrosion Research of (Ce15Nd85)30FebalB1M Sinered Magnet in Hygrothermal Environment[J].Journal of the Chinese Society of Rare Earths, 2016, 34(2):173-176 [17]吴亚萍, 朱明刚, 石晓宁等.永磁体湿热条件下的腐蚀性研究[J].中国稀土学报, 2016, 34(2):173-176