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| Anti-corrosion Behavior of Fluorocarbon Coating After Cyclic Salt Spray Test |
| Received:September 10, 2020 Revised:October 14, 2020 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.07.010 |
| KeyWord:fluorocarbon coating cyclic salt spray test electrochemical impedance spectroscopy corrosion protection |
| Author | Institution |
| SHE Zu-xin |
Southwest Research Institute of Technology and Engineering, Chongqing , China;Jiangjin Atmospheric Material Corrosion National Field Observation and Research Station, Jiangjin , China |
| WANG Hong-lun |
Unit 63796, Haikou |
| ZHANG Tao |
Southwest Research Institute of Technology and Engineering, Chongqing , China;Atmospheric Materials Corrosion and National Field Observation and Research Station, Wanning , China |
| HE Jian-xin |
Southwest Research Institute of Technology and Engineering, Chongqing , China;Atmospheric Materials Corrosion and National Field Observation and Research Station, Wanning , China |
| WANG Wan |
Southwest Research Institute of Technology and Engineering, Chongqing , China |
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| Abstract: |
| The corrosion protection behavior of fluorocarbon coating after cyclic salt spray test was investigated in this paper. The cyclic salt spray test was carried out according to GB/T 31588.1. The electrochemical impedance spectroscopy (EIS), adhesion, gloss and color difference tests were used to characterize the performance of the fluorocarbon coating. The electrochemical impedance spectroscopy data were fitted with equivalent circuit diagrams to evaluate the corrosion protection performance of the coating after salt spray test. After 1440 h of cyclic salt spray test, the coating had no tarnish, discoloration and powdering, the modulus value dropped from 1.42×1011Ω.cm2 to 7.26×1010Ω.cm2. The results indicated that the fluorocarbon coating still has excellent corrosion protection performance after the cyclic salt spray test. |
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