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| Changes of Protective Properties of Organic Coatings on Helicopter Rotor Blade during Indoor Accelerated Testing |
| Received:September 15, 2015 Revised:February 15, 2016 |
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| DOI：10.7643/issn.1672-9242.2016.01.001 |
| KeyWord:helicopter organic coatings protective properties accelerated testing |
| Author | Institution |
| LUO Chen |
Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Material，AVIC Beijing Institute of Aeronautical Materials， Beijing ， China |
| LI Zong-yuan |
General Staff Department Army Aviation Institute， Beijing ， China |
| SUN Zhi-hua |
Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Material，AVIC Beijing Institute of Aeronautical Materials， Beijing ， China |
| TANG Zhi-hui |
Aviation Key Laboratory of Science and Technology on Advanced Corrosion and Protection for Aviation Material，AVIC Beijing Institute of Aeronautical Materials， Beijing ， China |
| LI Jian |
General Staff Department Army Aviation Institute， Beijing ， China |
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| Abstract: |
| Objective To evaluate the anti-corrosion properties of typical helicopter rotor blade structure and its protection system that services in plateau environment. Methods Accelerated testing spectra for simulation of plateau environment was employed to reproduce the corrosion damage in service condition. Electrochemical impedance measurement was used to study the degradation of impedance of organic coatings. Results After 8 cycles of indoor accelerated testing, the EIS Bode diagram of the organic coatings on the repaired blade specimen decreased. The characteristic frequency electrochemical impedance modulus of discarded blade specimen was reduced by less than 1 magnitude compared to that of original specimen. Conclusion After 8 cycles, electrochemical impedance modulus diagram of the organic coatings on discarded blade specimen was still a little higher than that of repaired blade specimen. |
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