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dc.contributor.authorSilva, J. W J-
dc.contributor.authorCodaro, E. N.-
dc.contributor.authorNakazato, R. Z.-
dc.contributor.authorHein, L. R O-
dc.identifier.citationApplied Surface Science, v. 252, n. 4, p. 1117-1122, 2005.-
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.subjectAircraft alloys-
dc.subjectAluminum alloys-
dc.subjectImage analysis-
dc.subjectPitting corrosion-
dc.subjectMolybdenum compounds-
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.contributor.institutionUniversidade Estadual Paulista (UNESP)-
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.rights.accessRightsAcesso restrito-
dc.relation.ispartofApplied Surface Science-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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