Influence of chromate, molybdate and tungstate on pit formation in chloride medium

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dc.contributor.authorSilva, J. W J [UNESP]
dc.contributor.authorCodaro, E. N. [UNESP]
dc.contributor.authorNakazato, R. Z. [UNESP]
dc.contributor.authorHein, L. R O [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:21:40Z
dc.date.available2014-05-27T11:21:40Z
dc.date.issued2005-11-15
dc.description.abstractIt has been characterized and evaluated the 2024-T351 and 7050-T7451 aluminum alloys pitting corrosion in naturally aerated chloride aqueous solutions containing chromate, molybdate and tungstate. It has been carried out electrochemical and non-electrochemical immersion corrosion tests accompanied by surface metallography analysis using an optical microscopy. Chromate for the two alloys and in molybdate for 7050 has corrosion inhibiting effects, whereas tungstate promotes the pitting corrosion for these alloys. Quantitative surface analysis upon the alloys after immersion has indicated that pits are predominantly conical or quasi-conical and irregular. In general, pits have been wider than deep and the widest have been also the deepest. Despite inhibitor presence, when pits have been nucleated, they grow with the same intensity. © 2005 Elsevier B.V. All rights reserved.en
dc.description.affiliationElectrochemistry and Corrosion Group UNESP-São Paulo State University, Av. Dr. Ariberto Pereira da C. 333, CEP 12516-410, Guaratingueta, SP
dc.description.affiliationUnespElectrochemistry and Corrosion Group UNESP-São Paulo State University, Av. Dr. Ariberto Pereira da C. 333, CEP 12516-410, Guaratingueta, SP
dc.format.extent1117-1122
dc.identifierhttp://dx.doi.org/10.1016/j.apsusc.2005.02.030
dc.identifier.citationApplied Surface Science, v. 252, n. 4, p. 1117-1122, 2005.
dc.identifier.doi10.1016/j.apsusc.2005.02.030
dc.identifier.issn0169-4332
dc.identifier.lattes7539097260489375
dc.identifier.lattes8799191078451467
dc.identifier.lattes0778348300548797
dc.identifier.orcid0000-0001-7897-1905
dc.identifier.scopus2-s2.0-26444527354
dc.identifier.urihttp://hdl.handle.net/11449/68492
dc.language.isoeng
dc.relation.ispartofApplied Surface Science
dc.relation.ispartofjcr4.439
dc.relation.ispartofsjr1,093
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectAircraft alloys
dc.subjectAluminum alloys
dc.subjectImage analysis
dc.subjectPitting corrosion
dc.subjectChromates
dc.subjectElectrochemistry
dc.subjectMetallography
dc.subjectMolybdenum compounds
dc.subjectNucleation
dc.subjectSurface phenomena
dc.subjectTungsten compounds
dc.subjectCorrosion tests
dc.subjectSurface analysis
dc.subjectCorrosion protection
dc.titleInfluence of chromate, molybdate and tungstate on pit formation in chloride mediumen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
unesp.author.lattes7539097260489375
unesp.author.lattes0778348300548797
unesp.author.lattes8799191078451467[3]
unesp.author.orcid0000-0002-1648-2281[2]
unesp.author.orcid0000-0001-7897-1905[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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