Journal
CORROSION SCIENCE
Volume 126, Issue -, Pages 127-141Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2017.06.021
Keywords
Carbon steel; EIS; SEM; Crevice corrosion
Funding
- National Natural Science Foundation of China [51371086, 51571097]
- analytical and testing center of Huazhong University of Science and Technology
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Inhibition effect of imidazoline (IM) inhibitor on the crevice corrosion of N80 carbon steel in CO2-saturated NaCl solution containing acetic acid (HAc) was investigated by weight loss and electrochemical measurements, and surface analysis. The inhibition effect in the solution with 3 g/L HAc, where IM as a mixed-type inhibitor with predominant cathodic effectiveness, is more prominent than that in the solution with 1 g/L HAc, where IM as a mixed-type inhibitor with predominant anodic effectiveness. IM can inhibit the crevice corrosion of the steel when added at the beginning, but not when added after corrosion for a period of time.
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