| 烧结NdFeB永磁体在HNO3+HF混合溶液中的腐蚀行为 |
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| 引用本文： | 赵晴,袁学韬,杜楠.烧结NdFeB永磁体在HNO3+HF混合溶液中的腐蚀行为[J].材料工程,2007(2):15-18. |
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| 作者姓名： | 赵晴 袁学韬 杜楠 |
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| 作者单位： | 南昌航空工业学院,材料学院,南昌,330034 |
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| 摘 要： | 通过SEM,EDS和E-t曲线、Tafel曲线、EIS(交流阻抗谱)对烧结NdFeB合金在HNO3 HF混合溶液中的腐蚀行为及其损伤形貌进行了较系统的研究.结果表明,烧结NdFeB在混酸中的腐蚀是基体相与富钕相的全面腐蚀,腐蚀后晶间富钕相仍呈网状分布于主相晶粒上.
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| 关 键 词： | 烧结NdFeB 交流阻抗 腐蚀 |
| 文章编号： | 1001-4381(2007)02-0015-04 |
| 修稿时间： | 2006-03-02 |
Corrosion Behavior of Sintered NdFeB in HNO3 and HF Mixing Solution |
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| ZHAO Qing,YUAN Xue-tao,DU Nan.Corrosion Behavior of Sintered NdFeB in HNO3 and HF Mixing Solution[J].Journal of Materials Engineering,2007(2):15-18. |
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| Authors: | ZHAO Qing YUAN Xue-tao DU Nan |
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| Affiliation: | College of Material Science and Engineering, Nanchang Institute of Aeronautical Technology, Nanchang 330034,China |
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| Abstract: | Corrosion behavior and damage micrography of sintered NdFeB in HNO_3 + HF mixing solution were studied by means of SEM, EDS, E-t curve, Tafel curve and EIS. The results show that the general corrosions in mixing solution mainly take place on the matrix phase and intergranular Nd-rich phase, after that the Nd-rich phase still netted-distributed on grain boundary. |
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| Keywords: | sintered NdFeB EIS corrosion |
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