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Improvement of wear resistance of low-cost powder metallurgy beta-titanium alloys for biomedical applications

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carlosiii.embargo.liftdate2024-03-25
carlosiii.embargo.terms2024-03-25
dc.affiliation.dptoUC3M. Departamento de Mecánica de Medios Continuos y Teoría de Estructurases
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Nonlinear Solid Mechanicses
dc.affiliation.institutoUC3M. Instituto Tecnológico de Química y Materiales Álvaro Alonso Barbaes
dc.contributor.authorChirico, C.
dc.contributor.authorVaz-Romero, Álvaro
dc.contributor.authorGordo Odériz, Elena
dc.contributor.authorTsipas, Sophia Alexandra
dc.contributor.funderComunidad de Madrides
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2023-07-25T07:10:16Z
dc.date.issued2022-03-25
dc.description.abstractLow wear resistance and the relative high Young's modulus reduce the lifetime of the current biomedical Ti alloys for orthopaedic applications. In this study, two novel low-cost beta-Ti alloys (Ti-5Fe-25Nb and Tisingle bond40Nb in wt%), with reduced elastic modulus, are produced by powder metallurgy route, starting from TiH2 powder. In order to increase their wear resistance, two strategies are proposed: 1) addition of 5 vol% of TiN reinforcement particles and 2) gas nitriding surface treatment to produce a TiN coating. Wear resistance was evaluated by dry sliding reciprocating wear tests against alumina as counter material. Dry sliding tests were performed under unlubricated conditions, applying 10 N and 20 N load. Gas nitrided samples exhibit higher hardness than base alloys, while maintaining low elastic modulus. Both modification techniques improve wear resistance. The highest wear reduction was obtained for gas nitrided samples, reaching a wear rate reduction between 86% and 43%, compared to untreated alloys at 10 N, and between 4% to 15% at 20 N.en
dc.description.sponsorshipThis work was supported by the Ministry of Economy and Competitiveness of Spain (programme MINECO, ref. PCIN-2016-123 project BIOHYB, and the Regional Government of Madrid (programme ADITIMAT-CM, ref. S2018/NMT-4411).en
dc.format.extent15
dc.identifier.bibliographicCitationChirico, C., Romero, A., Gordo, E., & Tsipas, S. (2022). Improvement of wear resistance of low-cost powder metallurgy β-titanium alloys for biomedical applications. Surface and Coatings Technology, 434, 128207.en
dc.identifier.doihttps://doi.org/10.1016/j.surfcoat.2022.128207
dc.identifier.issn0257-8972
dc.identifier.publicationfirstpage1
dc.identifier.publicationissue128207
dc.identifier.publicationlastpage15
dc.identifier.publicationtitleSurface and Coatings Technologyen
dc.identifier.publicationvolume434
dc.identifier.urihttps://hdl.handle.net/10016/37977
dc.identifier.uxxiAR/0000030905
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. PCIN-2016-123es
dc.relation.projectIDComunidad de Madrid. S2018/NMT-4411es
dc.rights© 2022 Elsevier B.V.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsembargoed accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaIngeniería Industriales
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherWear resistanceen
dc.subject.otherTitanium matrix compositeen
dc.subject.otherGas nitridingen
dc.subject.otherLow-cost beta-Ti alloysen
dc.subject.otherTitanium hydrideen
dc.subject.otherBiomaterialsen
dc.titleImprovement of wear resistance of low-cost powder metallurgy beta-titanium alloys for biomedical applicationsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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