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dc.creatorDimcic, Biljana
dc.creatorStašić, Jelena M.
dc.creatorRužić, Jovana
dc.creatorBožić, Dušan
dc.date.accessioned2018-03-01T17:31:32Z
dc.date.available2018-03-01T17:31:32Z
dc.date.issued2017
dc.identifier.issn1003-6326 (print)
dc.identifier.issn2210-3384 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/1505
dc.description.abstractThe influence of microstructure, heat treatment and alloying addition on mechanical and fracture properties of Ti3Al-based intermetallic at room and elevated temperatures was studied. Ti3Al-11Nb-1Mo (mole fraction, %) alloy was consolidated via powder metallurgy processing by mechanical alloying (MA) and hot pressing (HP). MA powders were characterized using XRD and SEM-EDS. Optimum MA duration was 25 h and HP conditions of 1350 degrees C, 2 h, 35 MPa. After HP, solution treatment at 1050 degrees C for 1 h and water quenching alpha(2)+beta WidmanstAtten microstructure is present, while subsequent aging at 800 degrees C during 24 h induces small content of O-phase. High fraction of beta-phase is a direct consequence of Mo. Compression tests were performed from room temperature to 750 degrees C in vacuum. The yield strength of compacts increases with temperature up to 250 degrees C (pyramidal slip systems activation), after which it decreases. Ductility increases throughout the whole temperature range. The presence of O phase contributed to ductility increase in aged alloys, while negligibly lowering yield strength. Registered drop in the yield strength of aged alloys compared with non-aged ones was mostly influenced by precipitation of a. 2 particles. Mixed fracture modes are operative at all temperatures.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172005/RS//
dc.rightsrestrictedAccessen
dc.sourceTransactions of Nonferrous Metals Society of Chinaen
dc.subjecttitanium aluminideen
dc.subjectmechanical alloyingen
dc.subjecthot pressingen
dc.subjectthermal treatingen
dc.subjectcompressive propertiesen
dc.titleEffect of synthesis parameters on structural and mechanical properties of Ti3Al-Nb-Mo intermetallic compound obtained by powder metallurgy techniquesen
dc.typearticleen
dcterms.abstractБозиц, Дусан; Ружић Јована; Стасиц, Јелена; Димциц, Биљана;
dc.citation.volume27
dc.citation.issue3
dc.citation.spage527
dc.citation.epage537
dc.identifier.wos000398929200005
dc.identifier.doi10.1016/S1003-6326(17)60059-1
dc.identifier.scopus2-s2.0-85017374067


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