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| Research Progress on Corrosion Characteristics and Monitoring Methods of Submarine Pipeline Weldment |
| Received:November 02, 2022 Revised:June 26, 2023 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.07.013 |
| KeyWord:submarine pipeline weldment corrosion characteristics affecting factor non-uniform corrosion corrosion monitoring |
| Author | Institution |
| HAN Yi-feng |
Power China Huadong Engineering Corporation Limited, Hangzhou , China |
| ZHU Ye-sen |
Power China Huadong Engineering Corporation Limited, Hangzhou , China;State Key Laboratory Analysis for Industrial Equipment, Dalian University of Technology, Liaoning Dalian , China |
| CHEN Wan-bin |
State Key Laboratory Analysis for Industrial Equipment, Dalian University of Technology, Liaoning Dalian , China |
| CHENG Tang-hua |
Power China Huadong Engineering Corporation Limited, Hangzhou , China |
| HU Tao-yong |
Power China Huadong Engineering Corporation Limited, Hangzhou , China |
| HU Bao-wen |
Power China Huadong Engineering Corporation Limited, Hangzhou , China |
| HUANG Yi |
State Key Laboratory Analysis for Industrial Equipment, Dalian University of Technology, Liaoning Dalian , China |
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| Abstract: |
| Firstly, the corrosion theory of submarine pipeline weldment was introduced, among which the composition difference theory and the active tissue dissolution theory were the main internal causes of local corrosion in the weldment. Secondly, the factors affecting the corrosion performance of the weldment were summarized, including the elements, microstructures and other material factors, and environmental factors such as temperature and flow rate. Furthermore, based on the characteristics of weldment and environmental conditions, the main corrosion types such as galvanic corrosion, stress corrosion and intergranular corrosion were summarized. Finally, the review focused on the non-uniform corrosion monitoring methods in the weldment with complex element composition and microstructure structure, and defined the technical characteristics and applicable conditions such as electrochemical method and resistance method, so as to provide technical guidance for the process design and corrosion management in the weldment of submarine pipeline from the aspects of corrosion characteristics and corrosion monitoring. |
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