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| Study on the Biological Fouling and Corrosion of Copper surface in Typical Sea Area |
| Received:May 27, 2021 Revised:July 09, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.08.010 |
| KeyWord:biofouling copper alloy typical sea area corrosion harbours |
| Author | Institution |
| WANG Li |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
| LIN Cun-guo |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
| SU Yan |
Southwest Institute of Technology and Engineering, Natural Environmental Test and Research Center of Science Technology and Industry for National Defense, Chongqing , China |
| DING Kang-kang |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
| GUO Wei-min |
State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao , China |
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| Abstract: |
| The purpose of the paper is to comparatively research the biological fouling and corrosion of copper and copper alloys in the marine environment of the typical harbors of the Huanghai Sea, the East China Sea and the South China Sea. The field biological fouling and corrosion tests of copper and copper alloys are performed in the harbor seawater of Qingdao, Zhoushan and Sanya for a year in accordance with GB 12763.6—2007 Specifications for Oceanographic Survey and GB/T 5776—2005 Corrosion Test Methods for Metals and Alloys. The observation of biological fouling and the measurement of corrosion rate are conducted. The results show that Cu-Ni alloy B10, B30 and copper T2 have good performance in inhibiting fouling organisms in the three harbors, and copper T2 is better than Cu-Ni alloys, but its corrosion is serious. Bronze ZQMnD12-8-3-2 has a slightly higher copper content than Cu-Ni alloy B30, but its fouling inhibition performance is poor probably due to the adhesion of corrosion products on the surface. In brief, Cu-Ni alloy B10, B30 and copper T2 can inhibit the adhesion of fouling organisms, but there are some differences influenced by environmental factors and compactness of surface corrosion products of different sea areas. Under the influence of sediment containing water, the corrosion rate of copper alloys is higher in Zhoushan than those on other places. The corrosion rate of copper is the highest in Sanya of the three. |
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