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| Improvement of Navy Helicopter Surface Coating System |
| Received:June 09, 2019 Revised:July 19, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.12.014 |
| KeyWord:coating structure specimens corrosion-resistant accelerated corrosion test electrochemical impedance |
| Author | Institution |
| PENG Wang-shu |
Integrated Technology Research Department, China Helicopter Research and Development Institute, Jingdezhen , China |
| YANG Li-yuan |
Key Laboratory of Advanced Corrosion and Protection Aviation Technology for Aviation Materials, Beijing Institute of Aeronautical Materials, Beijing, , China |
| GAO Meng |
Key Laboratory of Advanced Corrosion and Protection Aviation Technology for Aviation Materials, Beijing Institute of Aeronautical Materials, Beijing, , China |
| SUN Zhi-hua |
Key Laboratory of Advanced Corrosion and Protection Aviation Technology for Aviation Materials, Beijing Institute of Aeronautical Materials, Beijing, , China |
| TANG Zhi-hui |
Key Laboratory of Advanced Corrosion and Protection Aviation Technology for Aviation Materials, Beijing Institute of Aeronautical Materials, Beijing, , China |
| QU Xin-hui |
Integrated Technology Research Department, China Helicopter Research and Development Institute, Jingdezhen , China |
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| Abstract: |
| Objective To solve the problem that the poor corrosion resistance of the naval helicopter surface coating system does not meet the calendar life requirements. Methods The designed structure specimens were painted with the newly developed organic coating and the original army helicopter organic coating. The structural part was subjected to an accelerated corrosion test of 8 cycles for a total of 200 days. The corrosion of coating was characterized by gloss measurement, loss of light measurement and electrochemical impedance spectroscopy to verify the corrosion resistance of the coating system. Results The new and original coatings were basically intact after the test, and the gloss and chromatic aberration of the new coatings were not significantly changed; and the gloss of the original coatings was greatly reduced. The new coating was always in the initial stage of corrosion; and its impedance was in the range of 108Ω.cm2. The original coating entered the middle of corrosion and its impedance was in the range of 106Ω.cm2. Conclusion The new coating has better corrosion resistance and is more suitable for using in the marine environment. |
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