Corrosion behaviour of sintered NdFeB deposited with an aluminium coating

被引：99
|
作者：
Mao, Shoudong [1 ]
Yang, Hengxiu [1 ]
Song, Zhenlun [1 ]
Li, Jinlong [1 ]
Ying, Huagen [1 ]
Sun, Kefei [1 ]
机构：
[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China
来源：
CORROSION SCIENCE | 2011年 / 53卷 / 05期
关键词：
Aluminium; Rare earth elements; EIS; Pitting corrosion; FE-B MAGNET; PERMANENT-MAGNETS; PITTING CORROSION; STAINLESS-STEEL; THIN-FILMS; ND; RESISTANCE; TEMPERATURE; PROTECTION; OXIDATION;
D O I：
10.1016/j.corsci.2011.02.006
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A protective, pure Al coating was deposited by direct current (DC) magnetron sputtering onto sintered NdFeB magnets. Separated, single phases of sintered NdFeB (the Nd-rich phase, the B-rich phase and the matrix phase) were prepared by arc melting for open circuit potential (OCP) tests. The corrosion process of the sintered NdFeB magnets coated with Al (Al/NdFeB) was studied experimentally. It was found that the corrosion process can be divided into three different stages. The Al coating cannot provide complete sacrificial protection for the sintered NdFeB magnets. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1887 / 1894
页数：8
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