Dynamic Impedance-Based Monitoring of St37 Carbon Steel Corrosion in Sterilized Manganese Broth Medium

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dc.authoridGerengi, Husnu/0000-0002-9663-4264
dc.authoridSolomon, Moses/0000-0002-3251-8846
dc.contributor.authorGerengi, Husnu
dc.contributor.authorCristiani, Pierangela
dc.contributor.authorSolomon, Moses M.
dc.contributor.authorIlhan-Sungur, Esra
dc.contributor.authorYildiz, Mesut
dc.contributor.authorSlepski, Pawel
dc.date.accessioned2025-10-11T20:48:34Z
dc.date.available2025-10-11T20:48:34Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractMicrobiologically influenced corrosion (MIC) of metals is a serious challenge where manganese oxidizing bacteria (MOB) can play a relevant role. However, there is no consensus on how MOB influences corrosion mechanisms. This arises from the complexity of the corrosion process and the challenge of distinguishing the effects of chemicals from the biological contributions. In this work, the electrochemical characteristics of St37 carbon steel in a bacteria-free Mn broth medium were monitored for 5 h using the new Dynamic Electrochemical Impedance Spectroscopy (DEIS) technique. The results were compared with those from the classical electrochemical methods to validate the new technique. DEIS accurately tracked corrosion processes in the media and analysis of the variation of parameters such as the polarization resistance (Rp), corrosion potential (E), and constant phase elements (n, and Y0) proved valuable insight in understanding the corrosion processes. The study reveals that, in a sterile Mn broth medium, the corrosion resistance of St37 steel improved over time due to the adsorption of yeast and (NH4)2Fe(SO4)2 on the surface. SEM and EDX results confirm the adsorption of protective deposits on the steel surface. The polarization resistance of St37 steel increased up to 12,000 Omega cm2 at 5 h of measurement. The results from the DEIS technique conform with those from the classical methods. The work therefore established the DEIS technique as reliable for corrosion measurements in a dynamic system. The results obtained can serve as a suitable baseline for future MIC studies induced by MOB.en_US
dc.description.sponsorshipCOST Action European MIC Network-New Paths for Science, Sustainability, and Standards (Euro-MIC) [CA20130]en_US
dc.description.sponsorshipSTMS [E-COST-GRANT-CA20130-b9d8fa36]en_US
dc.description.sponsorshipRSC Researcher Collaborations Grant [C25-2462454988]en_US
dc.description.sponsorshipThe authors thank the COST Action European MIC Network-New Paths for Science, Sustainability, and Standards (Euro-MIC) [CA20130] for supporting this research, which was carried out within the framework of a STMS (E-COST-GRANT-CA20130-b9d8fa36) . The authors also express their gratitude to RSE (Ricerca sul Sistema Energetico S.p.A.) and the Universita degli Studi di Milano for their kind support. MMS has submitted application for the RSC Researcher Collaborations Grant (C25-2462454988) under this project.en_US
dc.identifier.doi10.1016/j.electacta.2025.146011
dc.identifier.issn0013-4686
dc.identifier.issn1873-3859
dc.identifier.scopus2-s2.0-105001681890en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.electacta.2025.146011
dc.identifier.urihttps://hdl.handle.net/20.500.12684/21990
dc.identifier.volume525en_US
dc.identifier.wosWOS:001464028700001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofElectrochimica Actaen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKA_WOS_20250911
dc.subjectMicrobiologically influenced corrosionen_US
dc.subjectManganese oxidizing bacteriaen_US
dc.subjectMn broth mediumen_US
dc.subjectCorrosion inhibitionen_US
dc.subjectDynamic-EISen_US
dc.titleDynamic Impedance-Based Monitoring of St37 Carbon Steel Corrosion in Sterilized Manganese Broth Mediumen_US
dc.typeArticleen_US

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