Influence of annealing temperature on corrosion resistance of tio2 nanotubes grown on ti–30ta alloy

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dc.contributor.authorCapellato, Patricia
dc.contributor.authorSachs, Daniela
dc.contributor.authorVilela, Filipe Bueno
dc.contributor.authorMelo, Miriam M.
dc.contributor.authorSilva, Gilbert
dc.contributor.authorRodrigues, Geovani
dc.contributor.authorde C. Zavaglia, Cecilia A.
dc.contributor.authorNakazato, Roberto Z. [UNESP]
dc.contributor.authorClaro, Ana Paula R. A. [UNESP]
dc.contributor.institutionUnifei-Federal University of Itajubá
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2020-12-12T01:37:03Z
dc.date.available2020-12-12T01:37:03Z
dc.date.issued2020-08-01
dc.description.abstractWith little success, researchers has been searching for alloys with elements such as tantalum to improve the long-term life of implants. The Ti–30Ta alloy presents an elastic modulus E = 69 GPa that is close to that of bone (E = 17–25 GPa) than Ti cp (E = 105 GPa). In addition, nanostructure surface modification influences cell behavior and antimicrobial activity. So, this study investigates the corrosion behavior of surface modification by TiO2 nanotube grown on Ti–30Ta alloy after anodization process in the electrolyte glycerol + NH4F 0.25% at 30 V, for nine hours without annealing and annealed in 450◦C, 530◦C and 600◦C (5◦C/min). The electrochemical behavior was evaluated by three electrodes cell. The counter-electrode of graphite, reference-electrode of saturated calomel electrode and working-electrode at electrolyte of 0.15 M NaCl + 0.03 M NaF, with pH = 6 for 8000 s. The scanned region ranged from −0.8 V to values up to 3.5 V with a sweep rate 0.166 mV/s. Potentiodynamic polarization curves were obtained with a potentiostat. The sample was characterized by scanning electron microscopy (SEM) imaging, X-ray diffraction analysis (XRD) and wettability with a contact angle goniometer. We concludes from the obtained results that all treatment surfaces are hydrophilic (<90◦). The surface covered with TiO2 nanotube crystallinity showed anatase phase after annealing at 450◦C, 530◦C and 600◦C; the exceptions were the anodized-without-annealing treatment and without-surface-modification alloys. The electrochemical behavior of the five groups investigated showed similar high resistance to corrosion solution under all conditions.en
dc.description.affiliationInstitute of Physics and Chemistry Unifei-Federal University of Itajubá, Av. BPS, 1303
dc.description.affiliationInstitute of Mechanical Engineering Unifei-Federal University of Itajubá, Av. BPS, 1303
dc.description.affiliationFaculty of Mechanical Engineering Unicamp-State University of Campinas, Rua Mendeleyev, 200
dc.description.affiliationDepartment of Chemical and Energy Unesp-São Paulo State University, Av. Ariberto Pereira da Cunha, 333
dc.description.affiliationUnespDepartment of Chemical and Energy Unesp-São Paulo State University, Av. Ariberto Pereira da Cunha, 333
dc.description.sponsorshipAssociation for Progressive Communications
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdCNPq: 201271/2010-9
dc.description.sponsorshipIdCNPq: 486352/2013-7
dc.format.extent1-10
dc.identifierhttp://dx.doi.org/10.3390/met10081106
dc.identifier.citationMetals, v. 10, n. 8, p. 1-10, 2020.
dc.identifier.doi10.3390/met10081106
dc.identifier.issn2075-4701
dc.identifier.lattes8799191078451467
dc.identifier.orcid0000-0001-7897-1905
dc.identifier.scopus2-s2.0-85090258540
dc.identifier.urihttp://hdl.handle.net/11449/199337
dc.language.isoeng
dc.relation.ispartofMetals
dc.sourceScopus
dc.subjectAnnealing temperature
dc.subjectCorrosion resistance
dc.subjectTiO2 nanotube
dc.subjectTi–30Ta alloy
dc.titleInfluence of annealing temperature on corrosion resistance of tio2 nanotubes grown on ti–30ta alloyen
dc.typeArtigo
unesp.author.lattes8799191078451467[8]
unesp.author.orcid0000-0001-7897-1905[8]

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