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| Research Progress on Corrosion and Protection Technology of Welded Joints of Steel Structures in Marine Environment |
| Received:November 25, 2022 Revised:December 18, 2022 |
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| DOI：10.7643/issn.1672-9242.2023.07.014 |
| KeyWord:marine corrosion steel structure welded joints corrosion prevention |
| Author | Institution |
| LI Chuan |
Military Representative Bureau of Naval Armaments Department in Guangzhou, Chongqing , China |
| LIU Zheng-tao |
Southwest Institute of Technology and Engineering, Chongqing , China |
| CHEN Da-jun |
Southwest Institute of Technology and Engineering, Chongqing , China |
| FU Yang-fan |
Southwest Institute of Technology and Engineering, Chongqing , China |
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| Abstract: |
| In this work, the characteristics of marine corrosion environment were introduced and the corrosion characteristics of welded joints of steel structures were analyzed. On this basis, the research achievements of domestic and foreign scholars on the corrosion mechanism and influencing factors of welded joints in the marine environment were summarized, and the electrochemical corrosion behavior of welded joints dominated by galvanic corrosion, stress corrosion and corrosion fatigue was defined. According to the requirements of marine corrosion prevention for welded joints of steel structures, the main corrosion prevention schemes were summarized, such as adding alloy elements, welding process optimization, heat treatment, surface strengthening and anti-corrosion coating. Finally, based on the current research status of marine corrosion and protection of welded joints of steel structures, the problems of insufficient verification in actual marine working conditions and inadequate protection measures were proposed. |
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