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Mechanical properties and microstructural evolution of vacuum hot-pressed titanium and Ti-6Al-7Nb alloy

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnología de Polvoses
dc.contributor.authorBolzoni, Leandro
dc.contributor.authorRuiz Navas, Elisa María
dc.contributor.authorNeubauer, E.
dc.contributor.authorGordo Odériz, Elena
dc.date.accessioned2013-06-27T09:02:47Z
dc.date.available2013-06-27T09:02:47Z
dc.date.issued2012-05
dc.description.abstractHot-pressing is a powder metallurgy process where loose powder is loaded into a mould, usually of graphite, and sintered by the simultaneous application of high temperature and pressure. In this study elemental titanium and Ti&-6Al&-7Nb alloy powders are hot-pressed under different conditions in order to study the influence of the processing parameters on the microstructure and mechanical properties. The samples are characterised in terms of relative density, microstructure, XRD, percentage of interstitials, three-point bending test and hardness. Relative densities as high as 99% are obtained, the oxygen and carbon content remains almost constant but nitrogen percentage increases. This is due to the interaction with the BN coated mould and leads to the formation of a reacted layer in the surface, composed by different titanium compounds, which greatly affect the mechanical properties. Nevertheless, the removal of this reacted layer leads to an important improvement of the ductility, especially for elemental titanium.
dc.description.sponsorshipThe authors are grateful for the financial support from the Comunidad de Madrid through the ESTRUMAT (S-2009/MAT–1585) project and from the Spanish Ministry of Education through the R&D Project MAT2009-14448-C02-02.
dc.description.statusPublicado
dc.format.mimetypeapplication/pdf
dc.identifier.bibliographicCitationJournal of the Mechanical Behavior of Biomedical Materials, (2012), v. 9, pp. 91-99.
dc.identifier.doi10.1016/j.jmbbm.2012.01.015
dc.identifier.issn1751-6161
dc.identifier.publicationfirstpage91
dc.identifier.publicationlastpage99
dc.identifier.publicationtitleJournal of the Mechanical Behavior of Biomedical Materials
dc.identifier.publicationvolume9
dc.identifier.urihttps://hdl.handle.net/10016/17223
dc.identifier.uxxiAR/0000010004
dc.language.isoeng
dc.publisherElsevier
dc.relation.projectIDComunidad de Madrid. S2009/MAT-1585/ESTRUMAT
dc.relation.publisherversionhttp://dx.doi.org/10.1016/j.jmbbm.2012.01.015
dc.rights© Elsevier
dc.rights.accessRightsopen access
dc.subject.ecienciaMateriales
dc.subject.ecienciaQuímica
dc.subject.ecienciaIngeniería Industrial
dc.subject.otherVacuum hot-pressing
dc.subject.otherTitanium alloys
dc.subject.otherTi 6Al 7Nb
dc.subject.otherBending properties
dc.subject.otherBN-Ti interaction
dc.titleMechanical properties and microstructural evolution of vacuum hot-pressed titanium and Ti-6Al-7Nb alloy
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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