Study on the Influence of Galvanic Corrosion on Ship Structural Materials

2018 4th International Conference on Environmental Science and Material Application

生态环境科学;材料科学

Zhang, Haifeng^1

Jiangsu Maritime Institute, Nanjing

211170, China^1

关键词: Corrosion potentials;    Electrolytic treatment;    Galvanic corrosion behavior;    Polarization properties;    Protection measures;    Protection of metals;    Seawater environment;    Ship structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/252/2/022015/pdf
DOI  :  10.1088/1755-1315/252/2/022015

来源: IOP

【 摘 要 】

In order to study the effects of galvanic corrosion on the structural materials of ships, the effects of metal corrosion and ballast tank coating failure on ships are discussed. The electrolytic treatment technology of ship ballast water is one of the mainstream technologies for ship ballast water treatment. The new corrosion system was carefully explored. The galvanic corrosion rate is related to the nature of the material itself, including the corrosion potential, corrosion current, and polarization properties of the metal before coupling. In addition, it is affected by factors such as the area ratio of the cathode and the anode, dissolved oxygen in the seawater environment, temperature, and flow rate. The results showed that the research on the galvanic corrosion behavior of typical structural materials of ships in the marine environment provided economic and effective protection measures for the protection of ship materials. Therefore, this method is of great theoretical and practical significance for the protection of metal structural materials in other industries.