Qualitative and quantitative characterization of aluminium alloys after corrosion testing

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dc.contributor.authorNakazato, R. Z.
dc.contributor.authorCodaro, E. N.
dc.contributor.authorRibeiro, LMF
dc.contributor.authorHein, LRO
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:28:07Z
dc.date.available2014-05-20T13:28:07Z
dc.date.issued2001-06-01
dc.description.abstractThe 2024 and 7050 aluminium alloys used as aircraft components were subjected to laboratory corrosion tests in sodium chloride solution, Light-microscope examinations make it possible to characterise morphological aspects of the localised corrosion. Image analysis was used to determine both depth and width of pits over corroded surfaces. It has been concluded that the annealing could reduce the pit growth in both alloys, by means of grains recrystallization or recovery. The 2024 alloy also tends to present an exfoliation mechanism, mainly throughout non-recrystallized and recrystallized grain boundaries, increasing the width and sustaining the depth of pit cavities during exposition to saline atmosphere. SEM and EDS analysis reveal the morphology and elemental distribution of the corrosion products formed after immersion corrosion test. Some of these products were identified by X-ray diffraction analysis. For 2024, Al(OH)(3), MS(OH)(2) and Cu2O were found. AI(OH)(3) and Cu2O were also found in 7050 samples.en
dc.description.affiliationUNESP, Lab Analise Imagens Mat, Dept Mat & Tecnol, BR-12516410 Guaratingueta, SP, Brazil
dc.description.affiliationUnespUNESP, Lab Analise Imagens Mat, Dept Mat & Tecnol, BR-12516410 Guaratingueta, SP, Brazil
dc.format.extent301-313
dc.identifier.citationPraktische Metallographie-practical Metallography. Munich: Carl Hanser Verlag, v. 38, n. 6, p. 301-313, 2001.
dc.identifier.issn0032-678X
dc.identifier.lattes8799191078451467
dc.identifier.lattes7539097260489375
dc.identifier.lattes0778348300548797
dc.identifier.orcid0000-0001-7897-1905
dc.identifier.urihttp://hdl.handle.net/11449/9325
dc.identifier.wosWOS:000169916600002
dc.language.isoeng
dc.publisherCarl Hanser Verlag
dc.relation.ispartofPraktische Metallographie = Practical Metallography
dc.relation.ispartofjcr0.384
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.titleQualitative and quantitative characterization of aluminium alloys after corrosion testingen
dc.typeArtigo
dcterms.rightsHolderCarl Hanser Verlag
unesp.author.lattes7539097260489375
unesp.author.lattes0778348300548797
unesp.author.lattes8799191078451467[1]
unesp.author.orcid0000-0002-1648-2281[2]
unesp.author.orcid0000-0001-7897-1905[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Engenharia, Guaratinguetápt

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