Development of low cost PM Ti alloys by thermomechanical processing of powder blends

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dc.contributor.authorRaynova, Stiliana (Stella) Roussevaen_NZ
dc.contributor.authorGabbitas, Brianen_NZ
dc.contributor.authorBolzoni, Leandroen_NZ
dc.contributor.authorYang, Feien_NZ
dc.date.accessioned2017-07-13T23:12:56Z
dc.date.available2016en_NZ
dc.date.available2017-07-13T23:12:56Z
dc.date.issued2016en_NZ
dc.description.abstractThis research focuses on the development of low cost powder metallurgy (PM) Ti alloys suitable for application in PM thermomechanical processing with mechanical properties comparable to those of wrought Ti6Al4V alloy. The alloy systems studied are Ti3Al2V, Ti5Fe and Ti3.2Fe1Cr0.6Ni0.1Mo (Ti5SS). The alloy mixtures were produced by blending Ti HDH powders with Al40V, 316SS master alloy powders or elemental Fe powder. The blended powders were further consolidated using various methods: high vacuum sintering (HVS), induction sintering (IS), powder compact forging (PCF) and powder compact extrusion (PCE). It is found that, PM Ti3Al2V and Ti5Fe alloy processed by PCE or PCF followed by recrystallization annealing (RA) achieved tensile properties comparable with wrought Ti6Al4V alloy. Tensile properties such as yield strength (YS) of 910MPa, UTS of 1010MPa and 15% elongation to fracture for Ti3Al2V alloy are reported. Ti5Fe alloy gives YS and UTS of 870MPa and 968MPa respectively, combined with 20.3% elongation to fracture. The tensile results are related to the microstructure developed during the consolidation processes. The oxygen contamination as a result of the high temperature processing is also reported.
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dc.identifier.citationRaynova, S. (Stella) R., Gabbitas, B., Bolzoni, L., & Yang, F. (2016). Development of low cost PM Ti alloys by thermomechanical processing of powder blends. Key Engineering Materials, 704, 378–387. https://doi.org/10.4028/www.scientific.net/KEM.704.378en
dc.identifier.doi10.4028/www.scientific.net/KEM.704.378en_NZ
dc.identifier.issn1013-9826en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/11186
dc.language.isoen
dc.publisherTrans Tech Publicationsen_NZ
dc.relation.isPartOfKey Engineering Materialsen_NZ
dc.rightsThis is an author’s accepted version of an article published in the journal: Key Engineering Materials. © 2016 Trans Tech Publications, Switzerland
dc.titleDevelopment of low cost PM Ti alloys by thermomechanical processing of powder blendsen_NZ
dc.typeJournal Article
pubs.begin-page378
pubs.elements-id139260
pubs.end-page387
pubs.notesQA: http://www.ttp.net/1013-9826.htmlen_NZ
pubs.organisational-group/Waikato
pubs.organisational-group/Waikato/2018 PBRF
pubs.organisational-group/Waikato/FSEN
pubs.organisational-group/Waikato/FSEN/2018 PBRF - FSEN
pubs.organisational-group/Waikato/FSEN/School of Engineering
pubs.organisational-group/Waikato/FSEN/School of Engineering/2018 PBRF - School of Engineering
pubs.volume704en_NZ
uow.verification.statusverified
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