Modification of Sintered Titanium alloys by Hot Isostatic Pressing

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Show simple item record Bolzoni, Leandro Ruiz Navas, Elisa María Zhang, D. Gordo Odériz, Elena 2015-05-22T11:18:02Z 2015-05-22T11:18:02Z 2012
dc.identifier.bibliographicCitation Qian, M. (ed.) (2012) Powder Metallurgy of titanium: Powder Processing, Consolidation and Metallurgy of Titanium. (Key Engineering Materials, 520). Switzerland: Trans Tech Publications, 63-69.
dc.identifier.isbn 978-3-03785-468-6
dc.identifier.issn 1662-9795
dc.description Proceedings of: Powder Processing, Consolidation and Metallurgy of Titanium (PM Titanium 2011). Brisbane, 05-07 December 2011.
dc.description.abstract Powder metallurgy (PM) permits to obtain titanium alloys with properties and microstructures close to ingot metallurgy products. However, residual porosity is normally present in the products produced by the PM route of powder pressing and sintering (P&S)\, and this needs to be reduced by using post-sintering process step such as hot isostatic pressing (HIP) and forging. In this study, the microstructural and mechanical property changes caused by HIP of samples of two alloys, near-alfa Ti-3Al-2.5V alloy and alfa+beta Ti-6Al-4V, produced by P&S route were investigated. Two types of powders were utilised: prealloyed powders and blend of elemental titanium powder and master alloy powder. Four conditions defined by HIP temperature, pressure and time were used to HIP the sintered samples with two geometries. The results show that, independent of the HIP conditions used, HIP increased the relative density of the samples to approximately 97.5% and their hardness by 30-50 HV depending on the HIP condition. However, HIP at 1000ºC changes the fracture mode of the sintered samples from ductile to brittle.
dc.description.sponsorship The authors are thankful for the financial support from the Spanish Ministry of Education through the R&D MAT2009-14448-C02-02 and MAT2009-14547-C02-02 Projects and from Comunidad de Madrid through the ESTRUMAT (S-2009/MAT-1585) project.
dc.format.extent 7
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher Trans Tech Publications
dc.relation.ispartofseries Key engineering materials
dc.rights © 2012 Trans Tech Publications, Switzerland
dc.subject.other Ti alloys
dc.subject.other Powder metallurgy
dc.subject.other Prealloyed
dc.subject.other Master alloys
dc.subject.other HIP
dc.title Modification of Sintered Titanium alloys by Hot Isostatic Pressing
dc.type bookPart
dc.type conferenceObject
dc.description.status Publicado
dc.subject.eciencia Materiales
dc.identifier.doi 10.4028/
dc.rights.accessRights openAccess
dc.relation.projectID Comunidad de Madrid. S-2009/MAT-1585/ESTRUMAT
dc.type.version acceptedVersion
dc.relation.eventdate 05-07 December 2011.
dc.relation.eventplace Brisbane, Australia
dc.relation.eventtitle Powder Processing, Consolidation and Metallurgy of Titanium (PM Titanium 2011)
dc.relation.eventtype proceeding
dc.identifier.publicationfirstpage 63
dc.identifier.publicationlastpage 69
dc.identifier.publicationtitle Powder metallurgy of titanium : powder processing, consolidation and metallurgy of titanium
dc.identifier.publicationvolume 520
dc.identifier.uxxi CC/0000018139
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