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| Prediction of High-strength Aero LY12CZ Aluminum Alloy Residual Strength with Corrosion Damage |
| Received:August 21, 2013 Revised:September 15, 2013 |
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| DOI：10.7643/issn.1672-9242.2013.06.001 |
| KeyWord:corrosion pit corrosion damage residual strength |
| Author | Institution |
| LI Xu-dong |
Qingdao Campus of Naval Aeronautical Academy，Qingdao，China |
| MU Zhi-tao |
Qingdao Campus of Naval Aeronautical Academy，Qingdao，China |
| LIU Zhi-guo |
Qingdao Campus of Naval Aeronautical Academy，Qingdao，China |
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| Abstract: |
| Objective To study the degradation behavior of LY12CZ aluminum alloy with corrosion damage. Methods In order to create pits on specimen surface, specimens of LY12CZ aluminum alloy were exposed in corrosive solution according ASTM standard, the number and the geometric size distribution of the pits were statistical analyzed.ResultsSingle direction tensile tests were conducted on corroded specimen, which proved that residual strength decreases with the increasing of corrosion damage. The thesis proposed an AFGROW based method to predict the residual strength based on the average pit parameters and maximum pit parameters.Conclusion The proposed method is applicable for engineering practice. |
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