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| Study of Calendar Validity of LY12CZ Aluminum Alloy Aircraft Structure Coatings |
| Received:June 04, 2012 Revised:October 15, 2012 |
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| DOI： |
| KeyWord:coating accelerated corrosion glossiness chromatic aberration |
| Author | Institution |
| LIU Xue-jun |
Qingdao Branch of Naval Aeronautical Engineering Academy， Qingdao ， China |
| YANG Xiao-hua |
Qingdao Branch of Naval Aeronautical Engineering Academy， Qingdao ， China |
| XIN Zhi-dong |
Nanchang Hangkong University， Nanchang ， China |
| ZHANG Tai-feng |
Qingdao Branch of Naval Aeronautical Engineering Academy， Qingdao ， China |
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| Abstract: |
| Based on accelerated corrosion environmental spectrums for surface coatings of external and internal structure, accelerated aging test was carried out on surface coatings of external and internal structure of LY12CZ aluminum alloy of a certain type of aircraft. Surface morphology of corrosion and aging of two kinds of surface coatings were statistically analyzed. The time varying laws of glossiness and chromatic aberration were obtained. The validity of the surface coatings was comprehensively evaluated. The results showed that the term of validity of surface coatings of external structure of LY12CZ aluminum alloy is about 12 a, and the term of validity of surface coatings of internal structure of LY12CZ aluminum alloy is about 10 a. Scratch has little impact on surface coatings of external structure, but scratch has some impact on surface coatings of internal structure . |
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