Sand impingements on cathodic protection of marine carbon steel in natural sea water

Shan Gao, Xiaohui Zou, Yubin Zhao, Hao Chen, Qiliang Zhang, Yi Huang & Yunze Xu
In this work, the influence of sand impingements on cathodic protection (CP) of marine carbon steel in natural sea water was studied in comparison with the CP performances in static and flowing sea water without sand particles. Results show that the propagation of local active anodic dissolution at the steel inclusions could be totally inhibited by providing sufficient cathodic current in the sea water free of sand particles. However, the local ‘CP shielding’, potential fluctuation...
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