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dc.creatorŽivković, Ljiljana S.
dc.creatorPopić, Jovan P.
dc.creatorJegdić, Bore
dc.creatorDohcevic-Mitrovic, Z.
dc.creatorBajat, Jelena
dc.creatorMišković-Stanković, Vesna
dc.date.accessioned2019-01-30T17:41:57Z
dc.date.available2019-01-30T17:41:57Z
dc.date.issued2014
dc.identifier.issn0257-8972
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/1547
dc.description.abstractAmong potential replacements for chromates, cerium-based conversion coatings (CeCCs) have been identified as leading candidates, showing a good promise as environmentally compliant corrosion inhibitors on Al alloys. In this work, CeCCs were synthesized on M6060 by electrolytic deposition (ELD), a well-suited method for the fabrication of films with controllable properties, at low processing temperature and cost. The CeCCs were deposited at room temperature from Ce(NO3)(3) solution, applying different cathodic potentials (-1.1, -1.4 and -1.6 V vs. SCE) for different deposition times between 5 and 20 min. Structural, morphological and compositional properties of the films were characterized by X-ray diffraction, Raman spectroscopy and scanning electron microscopy coupled with energy dispersive spectroscopy. Ceria films were nanostructured, exhibiting a cubic fluorite structure. From corrosion perspective, the quality of CeCCs was evaluated in 0.5 M NaCI solution via electrochemical impedance spectroscopy and linear sweep voltammetry. As shown, the coating corrosion quality is the interplay between deposition potential and deposition time. The highest potential led to highly cracked films of poor adherence, even at the shortest deposition time, which disqualified them from any corrosion protection application. The lowest potential (-1.1 V) produced crack-free coatings, but longer times (>= 10 min) were needed to provide the protective layer formation. The best corrosion protection offered CeCCs prepared at -1.4 V. The highest R-p (582 k Omega cm(2)) and the smallest CPE (12.6 . 10(-6) s(n) Omega(-1) cm) were obtained at 20 min deposition time. However, from economical point of view, 10 min deposition is a promising choice. These CeCCs also improved pitting corrosion resistance owing to homogeneous microstructure and sufficient thickness.en
dc.publisherElsevier
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45019/RS//
dc.relationinfo:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45012/RS//
dc.rightsrestrictedAccess
dc.sourceSurface and Coatings Technology
dc.subjectCerium oxideen
dc.subjectConversion coatingsen
dc.subjectAluminum alloyen
dc.subjectElech-odepositionen
dc.subjectCorrosionen
dc.subjectElectrochemical impedance spectroscopyen
dc.titleCorrosion study of ceria coatings on AA6060 aluminum alloy obtained by cathodic electrodeposition: Effect of deposition potentialen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractМисковиц-Станковиц, В. Б.; Јегдић, Боре; Зивковиц, Љ. С.; Бајат, Ј. Б.; Дохцевиц-Митровиц, З.; Попић, Јован П.;
dc.citation.volume240
dc.citation.spage327
dc.citation.epage335
dc.citation.other240: 327-335
dc.citation.rankM21
dc.identifier.doi10.1016/j.surfcoat.2013.12.048
dc.identifier.rcubConv_3120
dc.identifier.scopus2-s2.0-84894905126
dc.identifier.wos000331989900044
dc.type.versionpublishedVersion


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