Effect of Borax Pentahydrate Addition to Acid Bath on the Microstructure and Corrosion Resistance of Zn-Co Coating

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dc.contributor.authorKarahan, I. H.
dc.date.accessioned2024-09-18T21:01:53Z
dc.date.available2024-09-18T21:01:53Z
dc.date.issued2015
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.descriptionInternational Conference on Computational and Experimental Science and Engineering (ICCESEN) -- OCT 25-29, 2014 -- Antalya, TURKEYen_US
dc.description.abstractIn this work, the Zn-Co coatings were synthesized on AISI 4140 steel and aluminum plates by using potentio-static electrodeposition technique in sulphate-based acidic baths with 0, 20, 40 and 60 gl(-1) of borax pentahydrate, as additive. The effect of borax pentahydrate on the microstructure of the samples was observed using scanning electron microscopy and X-ray diffractometer. The deposition process was investigated by cyclic voltammetry. The effect of borax pentahydrate on the corrosion resistance of the samples was studied by potentiodynamic polarization technique. The results have demonstrated, that the addition of borax pentahydrate was in favor of the growth of grains. The morphology of pyramidal islands on the surface was changed to a more flat structure. The results have also demonstrated that the effect of borax pentahydrate was not monotonous. With increasing concentration, the corrosion potential was at minimum and the charge transfer resistance R-t was at maximum for the sample obtained from the bath with 60 gl(-1) of borax pentahydate, indicating that this sample showed the best corrosion resistance. It was found that current density first decreased and than increased, due to adsorption of a complex of borax pentahydrate and/or changes in the morphology, however, the initial deposition potential was not affected. The addition of borax pentahydrate to the bath led to formation of the best Zn-Co deposits, composed of coalesced globular fine grains, smaller than approximate to 2 mu m in diameter. In addition, all of the studied Zn-Co deposits consisted of eta phases. It is suggested that Zn-Co deposits produced in the bath containing 60 gl(-1) of borax pentahydrate probably offer sacrificial protection to the steel substrate.en_US
dc.identifier.doi10.12693/APhysPolA.128.B-432
dc.identifier.endpageB435en_US
dc.identifier.issn0587-4246
dc.identifier.issn1898-794X
dc.identifier.issue2Ben_US
dc.identifier.scopus2-s2.0-84947792750en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpageB432en_US
dc.identifier.urihttps://doi.org/10.12693/APhysPolA.128.B-432
dc.identifier.urihttps://hdl.handle.net/20.500.12483/13062
dc.identifier.volume128en_US
dc.identifier.wosWOS:000363011700130en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherPolish Acad Sciences Inst Physicsen_US
dc.relation.ispartofActa Physica Polonica Aen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectZinc Alloy Coatingsen_US
dc.subjectCobalt Alloyen_US
dc.subjectProtective Abilityen_US
dc.subjectChloride Bathen_US
dc.subjectBoric-Aciden_US
dc.subjectElectrodepositionen_US
dc.subjectCoumarinen_US
dc.subjectBehavioren_US
dc.subjectGrowthen_US
dc.subjectAgentsen_US
dc.titleEffect of Borax Pentahydrate Addition to Acid Bath on the Microstructure and Corrosion Resistance of Zn-Co Coatingen_US
dc.typeConference Objecten_US

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