Influence of vacuum hot-pressing temperature on the microstructure and mechanical properties of Ti—2.5V alloy obtained by blended elemental and master alloy addition powders

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dc.contributor.author Bolzoni, Leandro
dc.contributor.author Ruiz Navas, Elisa María
dc.contributor.author Gordo Odériz, Elena
dc.date.accessioned 2015-04-16T09:28:47Z
dc.date.available 2015-04-16T09:28:47Z
dc.date.issued 2012-12
dc.identifier.bibliographicCitation Materials Chemistry and Physics (2012). 137(2), 608-616.
dc.identifier.issn 0254-0584
dc.identifier.uri http://hdl.handle.net/10016/20437
dc.description.abstract This study addresses the processing of near-net-shape, chemically homogeneous and fine-grained Ti–3Al–2.5V components using vacuum hot-pressing. Two Ti–3Al–2.5V starting powders were considered. On one side, hydride-dehydride (HDH) elemental titanium was blended with an HDH Ti–6Al–4V prealloyed powder. On the other side, an Al:V master alloy was added to the HDH elemental titanium powder. The powders were processed applying a uniaxial pressure of 30 MPa. The sintering temperatures studied varied between 900 degrees C and 1300 degrees C. The relative density of the samples increased with processing temperature and almost fully dense materials were obtained. The increase of the sintering temperature led also to a strong reaction between the titanium powders and the processing tools. This phenomenon occurred particularly with boron nitride (BN) coating, which was used to prevent the direct contact between titanium and graphite tools. The flexural properties of the Ti–3Al–2.5V samples increased with vacuum hot-pressing temperature and are comparable to those specified for wrought titanium medical devices. Therefore, the produced materials are promising candidates for load bearing applications as implant materials.
dc.description.sponsorship Financial support from Comunidad de Madrid through the ESTRUMAT (S-2009/MAT-1585) project and from the Spanish Ministry of Education through the R&D MAT2009-14448-C02-02 and MAT2009-14547-C02-02 Projects.
dc.format.extent 9
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Elsevier
dc.rights © 2012 Elsevier B.V
dc.subject.other Prealloyed
dc.subject.other Master alloy
dc.subject.other Vacuum hot-pressing
dc.subject.other Mechanical properties
dc.subject.other Ti—3Al—2.5V
dc.subject.other BN—Ti interaction
dc.title Influence of vacuum hot-pressing temperature on the microstructure and mechanical properties of Ti—2.5V alloy obtained by blended elemental and master alloy addition powders
dc.type article
dc.relation.publisherversion http://dx.doi.org/10.1016/j.matchemphys.2012.10.010
dc.subject.eciencia Materiales
dc.identifier.doi 10.1016/j.matchemphys.2012.10.010
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S2009/MAT-1585/ESTRUMAT
dc.type.version acceptedVersion
dc.identifier.publicationfirstpage 608
dc.identifier.publicationissue 2
dc.identifier.publicationlastpage 616
dc.identifier.publicationtitle Materials Chemistry and Physics
dc.identifier.publicationvolume 137
dc.identifier.uxxi AR/0000011482
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