Corrosion mechanisms in titanium oxide-based films produced by anodic treatment

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dc.contributor.authorAlves, A. C.
dc.contributor.authorWenger, F.
dc.contributor.authorPonthiaux, P.
dc.contributor.authorCelis, J. P.
dc.contributor.authorPinto, A. M.
dc.contributor.authorRocha, L. A. [UNESP]
dc.contributor.authorFernandes, J. C.S.
dc.contributor.institutionCMEMS-UMinho - Center of MicroElectroMechanical Systems - Universidade do Minho
dc.contributor.institutionLGPM – Laboratoire de Génie des Procédés et Matériaux – École Centrale Paris
dc.contributor.institutionMTM – Materials Engineering – KULeuven
dc.contributor.institutionDep. Mechanical Engineering – University of Minho
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionIBTN/Br – Brazilian Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine
dc.contributor.institutionUniversidade de Lisboa
dc.date.accessioned2018-12-11T17:10:39Z
dc.date.available2018-12-11T17:10:39Z
dc.date.issued2017-04-20
dc.description.abstractThanks to its excellent corrosion resistance, good mechanical properties and biocompatibility, titanium has been widely used as dental implant material. A passive oxide film formed on titanium surface is responsible for its high corrosion resistance. This study has evaluated the surface characteristics of oxide layers formed on commercially pure titanium samples by anodic treatment and the effect of anodic treatment on their corrosion behaviour. FEG-SEM and XRD were used to evaluate the micromorphology and crystalline structure of these oxide films. Their corrosion resistance was evaluated using electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization curves. EIS was performed for different times of immersion and a new equivalent electrical circuit (EEC) is proposed to fit the experimental data of the anodic oxide films. It was concluded that the morphology, composition, and structure of the outer porous layer of the anodic layer determine the corrosion protection of the material.en
dc.description.affiliationCMEMS-UMinho - Center of MicroElectroMechanical Systems - Universidade do Minho
dc.description.affiliationLGPM – Laboratoire de Génie des Procédés et Matériaux – École Centrale Paris
dc.description.affiliationMTM – Materials Engineering – KULeuven
dc.description.affiliationDep. Mechanical Engineering – University of Minho
dc.description.affiliationDep. Physics Faculdade de Ciências de Bauru UNESP - Universidade Estadual Paulista
dc.description.affiliationIBTN/Br – Brazilian Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine
dc.description.affiliationCQE/DEQ – Instituto Superior Técnico Universidade de Lisboa
dc.description.affiliationUnespDep. Physics Faculdade de Ciências de Bauru UNESP - Universidade Estadual Paulista
dc.format.extent16-27
dc.identifierhttp://dx.doi.org/10.1016/j.electacta.2017.03.011
dc.identifier.citationElectrochimica Acta, v. 234, p. 16-27.
dc.identifier.doi10.1016/j.electacta.2017.03.011
dc.identifier.file2-s2.0-85015404933.pdf
dc.identifier.issn0013-4686
dc.identifier.scopus2-s2.0-85015404933
dc.identifier.urihttp://hdl.handle.net/11449/174346
dc.language.isoeng
dc.relation.ispartofElectrochimica Acta
dc.relation.ispartofsjr1,439
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectAnodic treatment
dc.subjectBiomaterial
dc.subjectCorrosion
dc.subjectEIS
dc.subjectTitanium
dc.titleCorrosion mechanisms in titanium oxide-based films produced by anodic treatmenten
dc.typeArtigo
unesp.departmentFísica - FCpt

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