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| Research on the Corrosion Behavior of Simulated Samples with Coating for the Corrosion Critical Component on a Certain Type of Aircraft |
| Received:October 20, 2014 Revised:December 15, 2014 |
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| DOI：10. 7643 / issn. 1672-9242. 2014. 06. 008 |
| KeyWord:a certain type of aircraft corrosion critical component protective coating system accelerated corrosion environment experiment corrosion failure behavior |
| Author | Institution |
| ZHANG Lei |
Beijing Aeronautical Technology Research Center, Beijing , China |
| CHEN Qun-zhi |
Beijing Aeronautical Technology Research Center, Beijing , China |
| WANG Yu-ya |
Beijing Aeronautical Technology Research Center, Beijing , China |
| WU Zhi-chao |
Beijing Aeronautical Technology Research Center, Beijing , China |
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| Abstract: |
| Objective To study the corrosion failure behavior and evaluate the protection property of the coating for the corrosion critical component on a certain type of aircraft, and to provide test proofs for determining the calendar life of airplane and formulating maintenance compendium. Methods On the basis of compiling accelerated corrosion environment spectrum, accelerated corrosion experiments in typical accelerated corrosion environment were carried out. Results After accelerated corrosion for the two stages before and after repairing, there were bumps, cracks and exfoliation on the coating surface. Corrosion damage crowded at the joint section with rivets mainly. Conclusion Overall, the protective coating system on the surface of corrosion critical structure could meet the surface anti-corrosion requirements of the structure during the first restoring and the restoring interval periods. However, it would be necessary to enhance the coating protection for the corrosion critical joint section with rivets when used in field. And if corrosion damage was found on the coating of these areas during service, local repair should be implemented promptly. Under the condition of scientific use and maintenance, it would be possible to prolong the top overhauls interval. |
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