dc.creator | Dimčić, Biljana | |
dc.creator | Stašić, Jelena | |
dc.creator | Ružić, Jovana | |
dc.creator | Božić, Dušan | |
dc.date.accessioned | 2018-03-01T17:31:32Z | |
dc.date.available | 2018-03-01T17:31:32Z | |
dc.date.issued | 2017 | |
dc.identifier.issn | 1003-6326 | |
dc.identifier.issn | 2210-3384 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/1505 | |
dc.description.abstract | The 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.relation | info:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/172005/RS// | |
dc.rights | restrictedAccess | en |
dc.source | Transactions of Nonferrous Metals Society of China | en |
dc.subject | titanium aluminide | en |
dc.subject | mechanical alloying | en |
dc.subject | hot pressing | en |
dc.subject | thermal treating | en |
dc.subject | compressive properties | en |
dc.title | Effect of synthesis parameters on structural and mechanical properties of Ti3Al-Nb-Mo intermetallic compound obtained by powder metallurgy techniques | en |
dc.type | article | en |
dc.rights.license | ARR | |
dcterms.abstract | Бозиц, Дусан; Ружић Јована; Стасиц, Јелена; Димциц, Биљана; | |
dc.citation.volume | 27 | |
dc.citation.issue | 3 | |
dc.citation.spage | 527 | |
dc.citation.epage | 537 | |
dc.identifier.wos | 000398929200005 | |
dc.identifier.doi | 10.1016/S1003-6326(17)60059-1 | |
dc.citation.rank | M21 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-85017374067 | |