(State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao 266101, China)
Keywords:
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CLC:
PACS:
TG 146.4
DOI:
10.7502/j.issn.1674-3962.2014.02.06
DocumentCode:
Abstract:
Corrosion in harsh marine environment is a fatal factor influencing the performance and service life of a marine structure. Cathodic protection in combination with other methods like coating is a very effective way to mitigate the corrosion of metallic structures in sea water. This review deals with the state-of-the-art of cathodic protection technology for marine engineering structures, including sacrificial anode materials and impressed current cathodic protection system for marine structures, the criteria of cathodic protection potential for alloyed steels with different strength, the cathodic protection monitoring as well as the development and application of the design method for optimization, especially, the numerical simulation design approach. Finally, the trend of development of cathodic protection for marine structures has been discussed.