Improved Tribocorrosion Behavior Obtained by In-Situ Precipitation of Ti2C in Ti-Nb Alloy

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Minho-
Autor(es): dc.contributorInternational Iberian Nanotechnology Laboratory-
Autor(es): dc.contributorIzmir Institute of Technology-
Autor(es): dc.contributorDTx—Digital Transformation CoLab-
Autor(es): dc.creatorGonçalves, Vinícius Richieri Manso-
Autor(es): dc.creatorÇaha, Ihsan-
Autor(es): dc.creatorAlves, Alexandra Cruz-
Autor(es): dc.creatorToptan, Fatih-
Autor(es): dc.creatorRocha, Luís Augusto-
Data de aceite: dc.date.accessioned2025-08-21T20:28:32Z-
Data de disponibilização: dc.date.available2025-08-21T20:28:32Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2022-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/met12060908-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/240140-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/240140-
Descrição: dc.descriptionNovel in-situ Ti-based matrix composites (TMCs) were developed through the reactive hot pressing of Ti + NbC powder blends. Due to the chemical reaction that occurred in the solid-state during processing, the produced samples were composed of an Nb-rich β-Ti phase that formed a metallic matrix along with Ti2C as a reinforcing phase. By employing different proportions of Ti:NbC, the phase composition of the alloys was designed to contain different ratios of α-Ti and β-Ti. The present work investigated the corrosion and tribocorrosion behavior of the composites, compared to unreinforced Ti, in a phosphate-buffered solution (PBS) at body temperature. Corrosion tests included potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Tribocorrosion tests were carried out using a ball-on-plate tribometer with sliding performed at open circuit potential (OCP) and under anodic potentiostatic conditions. Results showed that the stabilization of the β phase in the matrix led to a decrease in the hardness. However, the formation of the in-situ reinforcing phase significantly improved the tribocorrosion behavior of the composites due to a load-carrying effect, lowering the corrosion tendency and kinetics under sliding. Furthermore, localized corrosion was not observed at the interface between the reinforcing phase and the matrix.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia-
Descrição: dc.descriptionDepartment of Physics School of Science São Paulo State University (UNESP)-
Descrição: dc.descriptionCenter for MicroElectroMechanical Systems (CMEMS-UMinho) University of Minho-
Descrição: dc.descriptionLaboratory on Biotechnology and Bioengineering and Electromechanical Systems (LABBELS) University of Minho-
Descrição: dc.descriptionInternational Iberian Nanotechnology Laboratory, Av. Mestre José Veiga s/n-
Descrição: dc.descriptionEuropean Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine (IBTN/Euro) University of Minho-
Descrição: dc.descriptionDepartment of Materials Science and Engineering Izmir Institute of Technology, Izmir-
Descrição: dc.descriptionBrazilian Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine (IBTN/Br) São Paulo State University (UNESP)-
Descrição: dc.descriptionDTx—Digital Transformation CoLab, Campus de Azurem-
Descrição: dc.descriptionDepartment of Physics School of Science São Paulo State University (UNESP)-
Descrição: dc.descriptionBrazilian Branch of the Institute of Biomaterials Tribocorrosion and Nanomedicine (IBTN/Br) São Paulo State University (UNESP)-
Descrição: dc.descriptionFAPESP: 2017/24300-4-
Descrição: dc.descriptionFAPESP: 2018/00746-6-
Descrição: dc.descriptionFAPESP: 2019/07953-0-
Descrição: dc.descriptionFundação para a Ciência e a Tecnologia: UIDB/04436/2020-
Idioma: dc.languageen-
Relação: dc.relationMetals-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectniobium carbide-
Palavras-chave: dc.subjectpowder metallurgy-
Palavras-chave: dc.subjectTi-based composites-
Palavras-chave: dc.subjecttribocorrosion-
Título: dc.titleImproved Tribocorrosion Behavior Obtained by In-Situ Precipitation of Ti2C in Ti-Nb Alloy-
Tipo de arquivo: dc.typelivro digital-
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