Contribution of galvanic coupling with TiN, TiAlN, and CrN to the corrosion of steel in neutral and acidic chloride solutions

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dc.authoridAvci, Burcak/0000-0002-3595-7852
dc.authoridUrgen, Mustafa/0000-0003-3549-0049
dc.contributor.authorAvci, Burcak
dc.contributor.authorKazmanli, Kursat
dc.contributor.authorEvren, Burak
dc.contributor.authorUrgen, Mustafa
dc.date.accessioned2025-02-20T08:42:25Z
dc.date.available2025-02-20T08:42:25Z
dc.date.issued2023
dc.departmentTürk-Alman Üniversitesien_US
dc.description.abstractThe inherent defective morphology of the physical vapor deposition (PVD) hard coatings limits their corrosion protective ability. We examined the impact of nitride-based PVD coatings, including TiN, TiAlN, and CrN deposited on inert substrates by cathodic arc PVD method (CA-PVD), on the galvanic corrosion of carbon steel. Their contribution was evaluated by zero-resistance ammeter (ZRA) and electrochemical impedance spectroscopy (EIS) in 3.5 wt.% NaCl at pH 2 and 6, with and without aeration. The results indicated the prominent role of the coating type and the coupling environment on the generated galvanic currents. Immersion tests for the TiN-, TiAlN-, and CrN-coated steel cross-sections visually verified these results. The galvanic current contribution was distinct in environments where oxygen reduction is the dominant cathodic reaction. However, the layers' contribution to galvanic corrosion was minimal in deaerated acidic solutions, which is attributed to the high bonding strength of adsorbed intermediates to the coating surfaces.
dc.identifier.doi10.1002/maco.202313848
dc.identifier.endpage1399en_US
dc.identifier.issn0947-5117
dc.identifier.issn1521-4176
dc.identifier.issue9en_US
dc.identifier.scopus2-s2.0-85153389018
dc.identifier.scopusqualityQ2
dc.identifier.startpage1390en_US
dc.identifier.urihttps://doi.org/10.1002/maco.202313848
dc.identifier.urihttps://hdl.handle.net/20.500.12846/1670
dc.identifier.volume74en_US
dc.identifier.wosWOS:000971430000001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley-V C H Verlag Gmbh
dc.relation.ispartofMaterials and Corrosion-Werkstoffe Und Korrosion
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250220
dc.subjectCrNen_US
dc.subjectelectrochemical impedance spectroscopy (EIS)en_US
dc.subjectgalvanic corrosionen_US
dc.subjectPVD coatingsen_US
dc.subjectTiAlNen_US
dc.subjectTiNen_US
dc.subjectzero resistance ammeter (ZRA)en_US
dc.titleContribution of galvanic coupling with TiN, TiAlN, and CrN to the corrosion of steel in neutral and acidic chloride solutions
dc.typeArticle

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