Diffusion of Interstitial Elements in Ti Alloys used as Biomaterials

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dc.contributor.authorGrandini, Carlos Roberto [UNESP]
dc.contributor.authorde Almeida, Luciano Henrique [UNESP]
dc.contributor.authorNogueira, Renata Abdallah [UNESP]
dc.contributor.authorNiemeyer, Terlize Cristina [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-20T13:26:22Z
dc.date.available2014-05-20T13:26:22Z
dc.date.issued2009-01-01
dc.description.abstractTitanium alloys are excellent implant materials for orthopedic applications due to their desirable properties, such as good corrosion resistance, low elasticity modulus, and excellent biocompatibility. The presence of interstitial elements (such as oxygen and nitrogen) causes strong changes in the material's mechanical properties, mainly in its elastic properties. Study of the interaction among interstitial elements present in metals began with Snoek's postulate, that a stress-induced ordering of interstitials gives rise to a peak in the mechanical relaxation (internal friction) spectra. In the mechanical relaxation spectra, each species of interstitial solute atom gives rise to a distinct Snoek's peak, whose temperature and position depend on the measurement frequency. This effect is very interesting because its peculiar parameters are directly related to the diffusion coefficient (D) for the interstitial solute. This paper presents a study of diffusion of heavy interstitial elements in Ti-35Nb-7Zr-5Ta alloys using mechanical spectroscopy. Pre-exponential factors and activation energies are calculated for oxygen and nitrogen in theses alloys.en
dc.description.affiliationUNESP, Grp Relaxacoes Anelast, BR-17033360 Bauru, SP, Brazil
dc.description.affiliationUnespUNESP, Grp Relaxacoes Anelast, BR-17033360 Bauru, SP, Brazil
dc.format.extent30-37
dc.identifierhttp://dx.doi.org/10.4028/www.scientific.net/DDF.283-286.30
dc.identifier.citationDiffusion In Solids and Liquids Iv. Stafa-zurich: Trans Tech Publications Ltd, v. 283-286, p. 30-37, 2009.
dc.identifier.doi10.4028/www.scientific.net/DDF.283-286.30
dc.identifier.issn1012-0386
dc.identifier.lattes2949983867418338
dc.identifier.orcid0000-0002-3336-309X
dc.identifier.urihttp://hdl.handle.net/11449/8496
dc.identifier.wosWOS:000265589600005
dc.language.isoeng
dc.publisherTrans Tech Publications Ltd
dc.relation.ispartofDiffusion In Solids and Liquids Iv
dc.relation.ispartofsjr0,129
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectDiffusionen
dc.subjectInterstitialsen
dc.subjectBiomaterialsen
dc.subjectMechanical Spectroscopyen
dc.titleDiffusion of Interstitial Elements in Ti Alloys used as Biomaterialsen
dc.typeTrabalho apresentado em evento
dcterms.licensehttp://www.ttp.net/Downloads.html
dcterms.rightsHolderTrans Tech Publications Ltd
unesp.author.lattes2949983867418338[1]
unesp.author.orcid0000-0002-3336-309X[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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