Pitting corrosion behavior of pure copper components in EHV/UHV DC transmission environment
EHV/UHV power transmission is the core technology to realize the global energy interconnection. As the most widely used conductor materials in power transmission system, the corrosion resistance of copper and copper alloys has been paid more attention. In the process of EHV/UHV DC transmission, ther...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Powder Metallurgy Technology
2024-02-01
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| Series: | Fenmo yejin jishu |
| Subjects: | |
| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020110003 |
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| author | HE Xuemin WANG Guishan LI Yinghong SHI Meijuan |
| author_facet | HE Xuemin WANG Guishan LI Yinghong SHI Meijuan |
| author_sort | HE Xuemin |
| collection | DOAJ |
| description | EHV/UHV power transmission is the core technology to realize the global energy interconnection. As the most widely used conductor materials in power transmission system, the corrosion resistance of copper and copper alloys has been paid more attention. In the process of EHV/UHV DC transmission, there is a large magnetic field in the surrounding environment, which leads to the service environment of the copper components different from that of the ordinary transmission environment. The electrochemical corrosion behavior of the pure copper under the EHV/UHV environment was studied by potential polarization, electrochemical impedance spectroscopy, and element analysis in this paper. The results show that, the limiting diffusion current of the pure copper in 3.5% NaCl solution (mass fraction) under the UHV/UHV environment is larger than that without magnetic field, and the reaction resistance without magnetic field is significantly increased compared with that under 0.1 T magnetic. Combined with the results of electrochemical impedance spectroscopy, X-ray diffraction, and elemental analysis, it is shown that the high-intensity magnetic field (0.1 T) can reduce the corrosion resistance of the pure copper, and the main corrosion product is Cu2O. |
| format | Article |
| id | doaj-art-c87841f03e7140e1bc3ecf99c4aca991 |
| institution | Kabale University |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2024-02-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-c87841f03e7140e1bc3ecf99c4aca9912024-11-13T05:46:38ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842024-02-01421919610.19591/j.cnki.cn11-1974/tf.2020110003Pitting corrosion behavior of pure copper components in EHV/UHV DC transmission environmentHE Xuemin0WANG Guishan1LI Yinghong2SHI Meijuan3Liuzhou Bureau of China Southern Power Grid EHV Company, Liuzhou 545000, ChinaLiuzhou Bureau of China Southern Power Grid EHV Company, Liuzhou 545000, ChinaLiuzhou Bureau of China Southern Power Grid EHV Company, Liuzhou 545000, ChinaLiuzhou Vocational and Technical College, Liuzhou 545000, ChinaEHV/UHV power transmission is the core technology to realize the global energy interconnection. As the most widely used conductor materials in power transmission system, the corrosion resistance of copper and copper alloys has been paid more attention. In the process of EHV/UHV DC transmission, there is a large magnetic field in the surrounding environment, which leads to the service environment of the copper components different from that of the ordinary transmission environment. The electrochemical corrosion behavior of the pure copper under the EHV/UHV environment was studied by potential polarization, electrochemical impedance spectroscopy, and element analysis in this paper. The results show that, the limiting diffusion current of the pure copper in 3.5% NaCl solution (mass fraction) under the UHV/UHV environment is larger than that without magnetic field, and the reaction resistance without magnetic field is significantly increased compared with that under 0.1 T magnetic. Combined with the results of electrochemical impedance spectroscopy, X-ray diffraction, and elemental analysis, it is shown that the high-intensity magnetic field (0.1 T) can reduce the corrosion resistance of the pure copper, and the main corrosion product is Cu2O.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020110003ehv/uhv dc transmissionmagnetic fieldpure coppercorrosion resistanceelectrochemistry |
| spellingShingle | HE Xuemin WANG Guishan LI Yinghong SHI Meijuan Pitting corrosion behavior of pure copper components in EHV/UHV DC transmission environment Fenmo yejin jishu ehv/uhv dc transmission magnetic field pure copper corrosion resistance electrochemistry |
| title | Pitting corrosion behavior of pure copper components in EHV/UHV DC transmission environment |
| title_full | Pitting corrosion behavior of pure copper components in EHV/UHV DC transmission environment |
| title_fullStr | Pitting corrosion behavior of pure copper components in EHV/UHV DC transmission environment |
| title_full_unstemmed | Pitting corrosion behavior of pure copper components in EHV/UHV DC transmission environment |
| title_short | Pitting corrosion behavior of pure copper components in EHV/UHV DC transmission environment |
| title_sort | pitting corrosion behavior of pure copper components in ehv uhv dc transmission environment |
| topic | ehv/uhv dc transmission magnetic field pure copper corrosion resistance electrochemistry |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2020110003 |
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