Ternary Zn–Ni–Co alloy: anomalous codeposition and corrosion stability

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dc.citation.epage86
dc.citation.spage73
dc.citation.volume80
dc.contributor.authorTOMIĆ, MILORAD V.
dc.contributor.authorPETROVIĆ, MILOŠ M.
dc.contributor.authorSTANKOVIĆ, SLAVKA
dc.contributor.authorSTEVANOVIĆ, SANJA I.
dc.contributor.authorBAJAT, JELENA B.
dc.date.accessioned2023-09-05T11:50:43Z
dc.date.available2023-09-05T11:50:43Z
dc.date.issued2015
dc.description.abstractElectrochemically deposited Zn–Ni–Co alloys under various deposition conditions were investigated using atomic absorption spectroscopy for the determination of the chemical composition, atomic force microscopy for surface morphology analysis, and electrochemical impedance spectroscopy for determination of corrosion properties. The influence of the ratio of the alloying elements, [Co2+]/[Ni2+], in a chloride deposition solution, as well as the deposition current density, on the chemical content, morphology and corrosion properties of the ternary alloys was studied. The plating solutions used were with the same overall metal concentration, free of additives and the deposition was realized at room temperature. It was shown that the deposition of the ternary alloy coatings was of anomalous type and that the ratio of nickel to cobalt ions in the plating solution, as well as the deposition current density, had a significant influence on the chemical composition and corrosion stability of these coatings. The presence of both Ni and Co was beneficial for their corrosion stability. It was shown that morphology and porosity were important factors in the corrosion stability of these coatings. The coating deposited from the solution with higher [Co2+]/[Ni2+] ratio at 8 A dm-2 was made up of the smallest crystalline aggregates, had a small surface roughness and porosity, and was with quite uniform distribution of agglomerates and it exhibited the best corrosion stability.
dc.identifier.doi10.2298/JSC260814113B
dc.identifier.urihttps://vaseljena.ues.rs.ba/handle/123456789/683
dc.language.isoen
dc.publisherSerbian Chemical Society
dc.sourceJournal of the Serbian Chemical Society
dc.subjectelectrodeposition; ternary alloy coatings; corrosion; EIS; AFM
dc.titleTernary Zn–Ni–Co alloy: anomalous codeposition and corrosion stability
dc.typeArticle
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