Physicochemical analysis of Ti-Si-B powder aalloys

dc.contributorInstituto Nacional de Pesquisas Espaciais (INPE)
dc.contributorETEP Faculdades
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:27:10Z
dc.date.accessioned2022-10-05T18:37:32Z
dc.date.available2014-05-27T11:27:10Z
dc.date.available2022-10-05T18:37:32Z
dc.date.created2014-05-27T11:27:10Z
dc.date.issued2012-11-26
dc.identifierMaterials Science Forum, v. 727-728, p. 287-292.
dc.identifier0255-5476
dc.identifierhttp://hdl.handle.net/11449/73758
dc.identifier10.4028/www.scientific.net/MSF.727-728.287
dc.identifier2-s2.0-84869477793
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3922737
dc.description.abstractTitanium alloys of Ti-Si-B system were manufactured by blended elemental powder method using Ti, Si and B powders as starting materials. It was found that uniaxial and isostatic pressing followed by hot pressing at around 1000°C, for 20 minutes, provided good densification of such alloys. The physicochemical studies were performed by means of scanning electron microscopy, X-ray diffraction, atomic force microscopy and microindentation/wear tests. The investigations revealed a multiphase microstructure formed mainly by α-titanium, Ti6Si2B, Ti5Si3, TiB and Ti3Si phases. The phase transformations after pressureless sintering at 1200°C was also studied by X-ray diffraction for the Ti-18Si-6B composition. As stated in some other researches, these intermetallics in the α-titanium matrix provide high wear resistance and hardness, with the best wear rate of 0.2 mm3/N.m and the highest hardness of around 1300 HV. © (2012) Trans Tech Publications, Switzerland.
dc.languageeng
dc.relationMaterials Science Forum
dc.relation0,180
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectHigh-energy ball milling
dc.subjectSintering
dc.subjectTitanium alloys
dc.subjectBlended elemental powders
dc.subjectHigh wear resistance
dc.subjectIsostatic pressing
dc.subjectMicro indentation
dc.subjectMultiphase microstructure
dc.subjectPhysico-chemical analysis
dc.subjectPhysicochemical studies
dc.subjectPressureless sintering
dc.subjectWear rates
dc.subjectAtomic force microscopy
dc.subjectBall milling
dc.subjectHardness
dc.subjectHot pressing
dc.subjectIntermetallics
dc.subjectScanning electron microscopy
dc.subjectSilicon
dc.subjectTitanium
dc.subjectTitanium compounds
dc.subjectX ray diffraction
dc.titlePhysicochemical analysis of Ti-Si-B powder aalloys
dc.typeTrabalho apresentado em evento


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