Study on the corrosion behavior of NdFeB permanent magnets in nitric acid and oxalic acid solutions with electrochemical techniques |
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| Authors: | H. Zhang Z. L. Song S. D. Mao H. X. Yang |
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| Affiliation: | 1. School of Physics and Material Sciences, Anhui University, Heifei 230039, (P. R. China);2. Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, (P. R. China) |
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| Abstract: | Corrosion behavior of sintered NdFeB magnets in nitric acid and oxalic acid was investigated. The experiment results indicated that NdFeB is strongly corroded in nitric acid solution, and is passivated in oxalic acid solution. Based on the corrosion behavior, the possible corrosion mechanisms are discussed. |
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| Keywords: | corrosion behavior corrosion mechanisms electrochemical measurements electrochemical noise NdFeB magnets |
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