Crevice Corrosion Behaviors of X52 Carbon Steel in Chloride Containing Solutions

Abstract:

The crevice corrosion behaviors of X52 carbon steel in two typical Cl--containing solutions were investigated by electrochemical noise and electrochemical impedance spectroscopy. Results show that oxygen concentration difference leads to the coupled current in NaCl + NaHCO3 solution while HAc concentration difference causes the coupled current in NaCl solution saturated with CO2 in the presence of HAc. There exists an apparent incubation stage during the crevice corrosion process of X52 carbon steel in the former. However, no obvious incubation period of crevice corrosion can be observed in the latter. Micrography shows that the crevice corrosion occurs indeed and the corrosion inside the crevice is not uniform.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 1432-1435
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.1432
• Online since: January 2013
• Authors: Qian Hu, Jing Liu, Jie Zhang, Feng Huang, Xing Peng Guo
• Keywords: Carbon Steel, Crevice Corrosion, Electrochemical Impedance Spectroscopy (EIS), Electrochemical Noise

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