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| Degradation Behaviors of Coated Riveted Structure during the Early Stages of Exposing to Marine Atmospheric Environment at Mischief Reef |
| Received:February 14, 2019 Revised:July 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.07.003 |
| KeyWord:riveted structure coating rivet electrochemical |
| Author | Institution |
| PAN Qiao |
Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material, Aero Engine Corpo-ration of China Aviation, AECC Beijing Institute of Aeronautical Materials, Beijing , China |
| YANG Li-yuan |
Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material, Aero Engine Corpo-ration of China Aviation, AECC Beijing Institute of Aeronautical Materials, Beijing , China |
| SUN Zhi-hua |
Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material, Aero Engine Corpo-ration of China Aviation, AECC Beijing Institute of Aeronautical Materials, Beijing , China |
| LUO Chen |
Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material, Aero Engine Corpo-ration of China Aviation, AECC Beijing Institute of Aeronautical Materials, Beijing , China |
| LIU Ming |
Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material, Aero Engine Corpo-ration of China Aviation, AECC Beijing Institute of Aeronautical Materials, Beijing , China |
| GAO Meng |
Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material, Aero Engine Corpo-ration of China Aviation, AECC Beijing Institute of Aeronautical Materials, Beijing , China |
| GAO Jian |
Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material, Aero Engine Corpo-ration of China Aviation, AECC Beijing Institute of Aeronautical Materials, Beijing , China |
| TANG Zhi-hui |
Key Laboratory of Science and Technology on advanced Corrosion and Protection for Aviation Material, Aero Engine Corpo-ration of China Aviation, AECC Beijing Institute of Aeronautical Materials, Beijing , China |
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| Abstract: |
| Objective To study on the degradation behaviors of coated riveted structure during the early stage of exposing to marine atmospheric environment at a tropical island. Methods Relevant changes were described by analyzing relevant data of macro photos, glossiness, chromatic aberration, optical micro images and EIS of specimens in the early stage of exposing to marine atmospheric environment at a tropical island. Results It was found that the glossiness loss rate and the chromatic aberration of the specimens exposed for 1 year were 67.0% and 10.67, respectively. Some ravines- and gullies-liked patterns can be seen at flat area, while defects can be found in the coatings at rivet and crevice. Additionally, the impedance magnitude of flat area at 0.01 Hz was changed from 2.81×1010 Ω to 8.19×108 Ω. Meanwhile, that data at rivet was changed from 1.09×109 Ω to 2.92×106 Ω. Conclusion The appearance change of specimens exposed to marine atmospheric environment at a tropical island are mainly embodied on glossiness loss and color change. Certain morphology change can be found on the coatings at flat area, rivet and crevice. In addition, the impedance decreases with the increase of the exposure time. Nevertheless, it has a relatively larger decrease range at rivet compared to that at flat area. |
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