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journalArticle An Biwen Annie Deland Eric Sobol Oded Yao Jizheng Skovhus Torben Lund Koerdt Andrea Carbon steel SEM SIMS microbiological corrosion modelling studies reactor conditions The differences in the corrosion product compositions of Methanogen-induced microbiologically influenced corrosion (Mi-MIC) between static and dynamic growth conditions Currently, corrosion rates (CR) and/or corrosion products (CP) obtained for methanogen-induced microbiologically influenced corrosion (Mi-MIC) on carbon steel are mainly analyzed from static-incubations. By using a multiport-flow-column, much higher CRs (0.72 mm/yr) were observed, indicating static-incubations are not suitable for determining the corrosive potential of Mi-MIC. With the combination of various analytical methods (ToF-SIMS/SEM-EDS/SEM-FIB) and contrary to previously published data, we observed that CPs contained phosphorus, oxygen, magnesium, calcium and iron but lacked carbon-related species (e.g. siderite). Overall, siderite nucleation is disrupted by methanogens, as they convert aqueous bicarbonate into carbon dioxide for methanogenesis resulting in increased localized corrosion. 109179 December 4, 2020 en http://www.sciencedirect.com/science/article/pii/S0010938X20324604 2020-12-08 08:07:54 ScienceDirect Corrosion Science Corrosion Science DOI 10.1016/j.corsci.2020.109179 ISSN 0010-938X