| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7923062 | Materials Chemistry and Physics | 2015 | 7 Pages |
Abstract
Corrosion behavior of NdFeB magnet in HNO3-HF solutions was investigated using open circuit potential and polarization measurements and impedance technique. Results showed that the additions of HF increased open circuit potential, corrosion potential and film/inductive/charge transfer resistance, but decreased corrosion current density of magnet. The HF effects on the corrosion performance were closely related to the formation of NdF3 corrosion products on magnet surface, in turn which depended on its content. Also the corrosion mechanism of magnet was discussed on the basis of structural observation, composition and EIS analyses.
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Authors
Junjie Ni, Xin Cui, Xiangfa Liu, Hui Cui, ZeChun Xue, Zhengfeng Jia, Changzheng Wang, Jie Ma, Shuwen Gong,