Relationship between microstructure, phase transformation, and mechanical behavior in Ti–40Ta alloys for biomedical applications

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dc.contributor.authorTito Patricio M.A.
dc.contributor.authorLustosa C.J.R.
dc.contributor.authorChaves J.A.M.
dc.contributor.authorMarques P.W.B.
dc.contributor.authorSilva P.S.
dc.contributor.authorAlmeida A.
dc.contributor.authorVilar R.
dc.contributor.authorFlorencio O.
dc.date.accessioned2024-03-12T19:19:24Z
dc.date.available2024-03-12T19:19:24Z
dc.date.issued2021
dc.description.abstract© 2021 The Author(s)Titanium and Ti alloys are important materials for scientific and technological applications, especially as biomaterials, due to their excellent corrosion resistance, biocompatibility, and mechanical properties. In this work, the influence of tantalum on the microstructure and mechanical properties of Ti–40Ta alloys were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), differential scanning calorimetry (DSC), and mechanical spectroscopy (MS) techniques. XRD and SEM analyses showed that commercially pure (CP) Ti consists of a single α-phase (hcp) with an equiaxed morphology, while Ti–40Ta alloy consists of α" (orthorhombic) and β (bcc) phases. The anelastic relaxation spectra of Ti–40Ta alloy presented characteristics combining CP Ti and pure Ta anelastic responses, where the complex anelastic relaxation peaks observed around 575 and 680 K could be resolved into matrix-interstitial and substitutional-interstitial components, corresponding to Ta–O, Ti–O, and Ta–N single interactions. The combination of thermal cycles and applied stress during the mechanical spectroscopy characterization of Ti–40Ta alloy promotes the α" → β phase transition until β phase stabilization. From flexural vibration measurements, the elastic modulus values at room temperature were: (102 ± 9) GPa for CP Ti and (71 ± 5) GPa for the Ti–40Ta alloy. These results provide a valuable contribution to a better understanding of the structure and mechanical properties of the Ti–40Ta alloy, thus allowing the optimization of its properties through thermal treatments, aiming at its potential application as a biomaterial for structural orthopedic applications.
dc.description.firstpage210
dc.description.lastpage219
dc.description.volume14
dc.identifier.doi10.1016/j.jmrt.2021.06.038
dc.identifier.issn2238-7854
dc.identifier.urihttps://dspace.mackenzie.br/handle/10899/34600
dc.relation.ispartofJournal of Materials Research and Technology
dc.rightsAcesso Aberto
dc.subject.otherlanguageBiomaterials
dc.subject.otherlanguageBiomedical alloys
dc.subject.otherlanguageElastic modulus
dc.subject.otherlanguageInternal friction
dc.subject.otherlanguageMechanical spectroscopy
dc.subject.otherlanguageTi–40Ta alloy
dc.titleRelationship between microstructure, phase transformation, and mechanical behavior in Ti–40Ta alloys for biomedical applications
dc.typeArtigo
local.scopus.citations13
local.scopus.eid2-s2.0-85109443594
local.scopus.subjectBiomedical alloys
local.scopus.subjectInterstitials
local.scopus.subjectMechanical
local.scopus.subjectMechanical spectroscopy
local.scopus.subjectPhase transformation behavior
local.scopus.subjectProperty
local.scopus.subjectScanning electrons
local.scopus.subjectThermal
local.scopus.subjectTi–40ta alloy
local.scopus.subjectX- ray diffractions
local.scopus.updated2024-12-01
local.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85109443594&origin=inward
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