Corrosion behavior of stainless steel in seawater in the presence of sulfide

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dc.contributor.authorGudic, Senka
dc.contributor.authorVrsalovic, Ladislav
dc.contributor.authorMatošin, Ante
dc.contributor.authorKrolo, Jure
dc.contributor.authorOguzie, Emeka Emanuel
dc.contributor.authorNagode, Ales
dc.date.accessioned2024-10-21T15:32:05Z
dc.date.available2024-10-21T15:32:05Z
dc.date.issued2023-03-29
dc.descriptionThis research was conducted in collaboration with a staff of this institution
dc.description.abstractThe effect of temperature (from 288 to 308K) and concentration of sulfide ions (up to 40ppm) on the corrosion behavior of AISI 304L and AISI 316L stainless steels in seawater was studied with measurements of open-circuit potential, linear and potentiodynamic polarization, and electrochemical impedance spectroscopy. An increase in temperature and pollutant concentration negatively affects the corrosion stability of stainless steels at the open circuit (the resistance, compactness, and thickness of the surface layer decrease and the corrosion current increases), in the passive region (the passivation current increases, the depassivation potential decreases, and the passive potential region narrows), and in the transpassive potential region (the rate of metal dissolution increases). The occurrence of pitting corrosion on the surface of the samples was confirmed with optical microscopy and a non-contact 3D profilometer. A few large pits (depth 80–100 m and width 100 m) were formed on the surface of AISI 304L steel, while several smaller pits (depth 40–50 m and width 50 m) were formed on the surface of AISI 316L steel. With increasing temperature and sulfide ion concentration, the width, depth, and density of the pits increased on both steel samples. In the studied temperature and concentration range of sulfide ions, the AISI 316L steels exhibited higher corrosion resistance. Overall, the influence of sulfide ions on steel corrosion was more pronounced than the influence of temperature
dc.description.sponsorshipFaculty of Chemistry and Technology, University of Split, Rudera Boškovica
dc.identifier.citationGudić, S., Vrsalović, L., Matošin, A., Krolo, J., Oguzie, E. E. & Nagode, A. (2023). Corrosion behavior of stainless steel in seawater in the presence of sulfide. Applied Sciences, 13(7), 4366
dc.identifier.doihttps://doi.org/10.3390/app13074366
dc.identifier.urihttps://repository.futo.edu.ng/handle/20.500.14562/1399
dc.language.isoen
dc.publisherMPDI
dc.rightsAttribution-NonCommercial-ShareAlike 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.subjectStainless steel
dc.subjectseawater
dc.subjectsulfide
dc.subjectpitting corrosion
dc.subjectpassive film
dc.subjectsurface analysis
dc.titleCorrosion behavior of stainless steel in seawater in the presence of sulfide
dc.typeArticle

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