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| Reliability Model of Accelerated Corrosion Relationship Based on Corrosion Current |
| Received:July 04, 2018 Revised:January 25, 2019 |
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| DOI：10.7643/ issn.1672-9242.2019.01.010 |
| KeyWord:polarization curve corrosion current accelerated corrosion relationship confidence level |
| Author | Institution |
| ZHANG Tai-feng |
Qingdao Branch of Naval Aviation University, Qingdao, , China |
| GU Zhi-yue |
Qingdao Branch of Naval Aviation University, Qingdao, , China |
| WANG De |
Qingdao Branch of Naval Aviation University, Qingdao, , China |
| YANG Xiao-hua |
Qingdao Branch of Naval Aviation University, Qingdao, , China |
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| Abstract: |
| Objective To provide a basis for determining the calendar life of aircraft through studying the relationship of ac-celerated corrosion. Methods The reliability model of accelerated corrosion relationship based on corrosion current was proposed. The corrosion current of LY12 and ZL115 aluminum alloy materials in distilled water and NaCl solution with different concentration were obtained by means of polarization curve test. Results The corrosion current of random aluminum alloy with defect distribution was random and increased with the increase of salt. The accelerated corrosion relationship coefficient of the two kinds of aluminum alloy materials was statistically different. Accelerated corrosion relationship coefficient of LY12 aluminum alloy with 95% confidence under 3.5% salt concentration (temperature) was 3.53, ZL115=2.32 respectively. Conclusion The study of accelerated corrosion relationship based on corrosion current in this paper can provide a basis for determining the calendar life of aircraft. |
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