文献类型：期刊文献

英文题名：Design and experimental study of a joint protection system for electrolytic seawater antifouling and impressed current cathodic protection

作者：Deng, Peichang[1,2]; Wang, Peilin[4]; Hu, Jiezhen[3,4]; Zheng, Guanwen[5]; Yang, Jingrong[3]; Liu, Dahai[3]

机构：[1] College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, 524088, China; [2] Zhanjiang Key Laboratory of Corrosion and Protection of Ocean Engineering Equipment, Zhanjiang, 524088, China; [3] Guangdong Provincial Ocean Equipment and Manufacturing Engineering Technology Research Center, Zhanjiang, 524088, China; [4] College of Mechanical Engineering, Guangdong Ocean University, Zhanjiang, 524088, China; [5] Zhangjiang Power Company Limited, Guangdong, Zhanjiang, 524099, China

年份：2025

卷号：482

外文期刊名：Construction and Building Materials

收录：EI(收录号：20251918374094)、Scopus(收录号：2-s2.0-105004255900)

语种：英文

外文关键词：Anodic protection - Electrochemical corrosion - Fouling - Passivation - Seawater corrosion - Steel corrosion

外文摘要：A joint protection system is proposed, replace the auxiliary anode in impressed current cathodic protection with DSA anode with chlorine evolution ability, and perform electrolytic seawater antifouling while performing impressed current cathodic protection. The results of electrochemical impedance tests are used in conjunction with the relationship between the material hardness and degree of hydrogen embrittlement to determine that the cathodic protection potential range is ?0.85 V– ?1.17 V (vs. SCE). An effective chlorine detection electrode is used to detect the concentration and diffusion of effective chlorine in the anode region of the combined protection system, where the potential range for chlorine production by the anode is 1.85 V–2 V (vs. SCE). The anode and cathode potentials are adjusted to conduct a comparative experiment on corrosion and biological adhesion on the surface of Q345 carbon steel treated with joint protection in marine environments. The surface morphology of the experimental samples is analyzed. The experimental results reveal joint protection prevents corrosion of the surface of the Q345 carbon steel as well as fouling or biological attachment. A white calcium–magnesium deposition layer forms on the substrate surface. For the Q345 carbon steel treated with ICCP alone, there are very clear signs of biological adhesion on the surface, the substrate under the deposition layer is clearly corroded, and the deposition layer appears yellow because of the adhesion of a large quantity of organic matter. A comparative analysis of the experimental results leads to the conclusion that the combined application of electrolytic seawater antifouling and ICCP to Q345 carbon steel can simultaneously prevent electrochemical corrosion and marine fouling by biological adhesion. ? 2025 Elsevier Ltd