期刊
CORROSION SCIENCE
卷 173, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2020.108753
关键词
Steel; EIS; Polarization; SEM; Weight loss; Microbiological corrosion
资金
- Natural Science and Engineering Research Council of Canada (NSERC)
In this work, corrosion of an X52 pipeline steel was investigated in a simulated soil solution containing Pseudomonas aeruginosa (PAO1), Desulfovibrio desulfuricans (sulfate-reducing bacteria, SRB) or both, where the corrosion rates of the steel are 0.035, 0.076 and 0.060 mm/year, respectively. There is no corrosion enhancement between PAO1 and SRB when they coexist. The presence of PAO1 facilitates the SRB cells to be surrounded by corrosion products, and cannot contribute to corrosion at the identical level to the SRB that are bare to the environment. The three microorganism scenarios cause localized corrosion on the steel.
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