Effect of Bulk Phase Composition on the Growth of PEO Coatings on the Biomedical Ti-6Al-4V Alloy

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorNeto, José Roberto Ferreira-
Autor(es): dc.creatorRibeiro, Rafael Parra-
Autor(es): dc.creatorCruz, Nilson Cristino da-
Autor(es): dc.creatorRangel, Elidiane Cipriano-
Autor(es): dc.creatorPinto, Bruna de Oliveira-
Autor(es): dc.creatorTorrento, Jhuliene Elen Muro-
Autor(es): dc.creatorGrandini, Carlos Roberto-
Autor(es): dc.creatorKaneko, Ulisses Ferreira-
Autor(es): dc.creatorCorrea, Diego Rafael Nespeque-
Data de aceite: dc.date.accessioned2025-08-21T20:55:03Z-
Data de disponibilização: dc.date.available2025-08-21T20:55:03Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2025-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/ma18050955-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/298567-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/298567-
Descrição: dc.descriptionThis study investigated the effects of plasma electrolytic oxidation (PEO) treatment in a Ca- and P-rich electrolyte on the surface of the Ti-6Al-4V alloy with distinct α/β phase proportions previously induced by heat treatments. The results revealed that the α/β phase proportions were successfully altered by the heat treatment temperatures, forming α phase plates surrounded by β phase precipitates. PEO-treated samples exhibited a thick and microsized porous TiO2 coating in the anatase and rutile crystalline forms. The oxide layer was depleted by Al and V atoms, while Ca and P were gradually enriched along the coatings. Chemical analysis also indicated the absorption of water and organic molecules into the outer layer. PEO-treated samples had microscale roughness and thickness, hydrophilic behavior, and surface energy mainly formed by the dispersive component. The bulk’s elastic modulus decreased with β phase precipitation, while the alloying elements directly influenced the Vickers microhardness. The corrosion tests indicated a stable and protective layer in the PEO-treated samples, showing better corrosion resistance than untreated ones. Overall, the findings indicated that the α and β phase proportion significantly impacts the mechanical properties, while the PEO treatment acts in the corrosion protection and surface aspects, suggesting that combining both approaches could be a powerful tool in biomedical applications.-
Descrição: dc.descriptionConsejo Nacional para Investigaciones Científicas y Tecnológicas-
Descrição: dc.descriptionLaboratory of Technological Plasma Institute of Science and Technology São Paulo State University (UNESP), Campus Sorocaba, SP-
Descrição: dc.descriptionLaboratory of Anelasticity and Biomaterials School of Sciences São Paulo State University (UNESP), Campus Bauru, SP-
Descrição: dc.descriptionInstitute of Geosciences and Exact Sciences São Paulo State University (UNESP), Campus Rio Claro, SP-
Descrição: dc.descriptionLaboratory of Technological Plasma Institute of Science and Technology São Paulo State University (UNESP), Campus Sorocaba, SP-
Descrição: dc.descriptionLaboratory of Anelasticity and Biomaterials School of Sciences São Paulo State University (UNESP), Campus Bauru, SP-
Descrição: dc.descriptionInstitute of Geosciences and Exact Sciences São Paulo State University (UNESP), Campus Rio Claro, SP-
Descrição: dc.descriptionConsejo Nacional para Investigaciones Científicas y Tecnológicas: #314810/2021-8-
Descrição: dc.descriptionConsejo Nacional para Investigaciones Científicas y Tecnológicas: #404020/2023-2-
Descrição: dc.descriptionConsejo Nacional para Investigaciones Científicas y Tecnológicas: #407251/2018-9-
Descrição: dc.descriptionConsejo Nacional para Investigaciones Científicas y Tecnológicas: #421677/2023-6-
Idioma: dc.languageen-
Relação: dc.relationMaterials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbiomaterials-
Palavras-chave: dc.subjectcorrosion-
Palavras-chave: dc.subjectheat treatment-
Palavras-chave: dc.subjectPEO-
Palavras-chave: dc.subjectphase composition-
Palavras-chave: dc.subjectTi-6Al-4V-
Título: dc.titleEffect of Bulk Phase Composition on the Growth of PEO Coatings on the Biomedical Ti-6Al-4V Alloy-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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