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Optimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressing

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dc.contributor.authorSilva, R.
dc.contributor.authorSilva, J.
dc.contributor.authorViana, C. C.
dc.contributor.authorAfonso, C. R.M.
dc.contributor.authorHammer, P. [UNESP]
dc.contributor.authorMagalhães, D. C.C.
dc.contributor.authorPlaine, A. H.
dc.contributor.authorRovere, C. A.D.
dc.contributor.institutionUniversidade Federal de São Carlos (UFSCar)
dc.contributor.institutionState University of Santa Catarina
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2025-04-29T19:30:24Z
dc.date.issued2025-03-01
dc.description.abstractControlling the microstructure of the Ti–35Nb–7Zr–5Ta alloy is fundamental for enhancing its strength and corrosion resistance in biomedical applications. This study examines how microstructural evolution through equal-channel angular pressing (ECAP) at room temperature and 300 °C influences Young's modulus, hardness, and corrosion resistance. ECAP refines grain size and promotes nanocrystalline β-phase grains, α phase decomposition, and ω phase precipitation. Room temperature ECAP decreases Young's modulus by reducing the β-phase stability due to deformation, while 300 °C processing enhances hardness and Young's modulus due to finer microstructure and higher ω-phase fraction. Grain refinement accelerates passivation kinetics, enhancing corrosion resistance with a thicker and less defective passive film, especially at 300 °C, without significant changes in the elemental composition of the outer passive film.en
dc.description.affiliationMunir Rachid Corrosion Laboratory Department of Materials Engineering Federal University of São Carlos, Rodovia Washington Luis Km 235, SP
dc.description.affiliationFederal University of São Carlos Graduate Program in Materials Science and Engineering
dc.description.affiliationDepartment of Mechanical Engineering State University of Santa Catarina, Paulo Malschitzki, SC
dc.description.affiliationInstitute of Chemistry São Paulo State University, SP
dc.description.affiliationUnespInstitute of Chemistry São Paulo State University, SP
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFundação de Amparo à Pesquisa e Inovação do Estado de Santa Catarina
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent2055-2067
dc.identifierhttp://dx.doi.org/10.1016/j.jmrt.2025.01.136
dc.identifier.citationJournal of Materials Research and Technology, v. 35, p. 2055-2067.
dc.identifier.doi10.1016/j.jmrt.2025.01.136
dc.identifier.issn2214-0697
dc.identifier.issn2238-7854
dc.identifier.scopus2-s2.0-85215824786
dc.identifier.urihttps://hdl.handle.net/11449/303676
dc.language.isoeng
dc.relation.ispartofJournal of Materials Research and Technology
dc.sourceScopus
dc.subjectECAP
dc.subjectEIS
dc.subjectMicrostructure
dc.subjectPolarization
dc.subjectXPS analysis
dc.subjectYoung's modulus
dc.subjectβ-titanium alloy
dc.titleOptimizing strength and corrosion resistance of the metastable β-alloy Ti–35Nb–7Zr–5Ta alloy by equal-channel angular pressingen
dc.typeArtigopt
dspace.entity.typePublication
relation.isOrgUnitOfPublicationbc74a1ce-4c4c-4dad-8378-83962d76c4fd
relation.isOrgUnitOfPublication.latestForDiscoverybc74a1ce-4c4c-4dad-8378-83962d76c4fd
unesp.author.orcid0000-0002-1381-1334 0000-0002-1381-1334[1]
unesp.author.orcid0000-0002-3823-0050[5]
unesp.author.orcid0000-0003-1534-0561 0000-0003-1534-0561[8]
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Química, Araraquarapt

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Araraquara - IQAR - Instituto de Química