Monotonic and cyclic properties of TiAl alloys Monotic and cyclic properties of TiAl alloys doped with Nb, Mo and C

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dc.contributor.authorChlupová, Alicecs
dc.contributor.authorObrtlík, Karelcs
dc.contributor.authorBeran, Přemyslcs
dc.contributor.authorHeczko, Milancs
dc.contributor.authorPolák, Jaroslavcs
dc.contributor.authorKruml, Tomášcs
dc.coverage.issue1cs
dc.coverage.volume74cs
dc.date.accessioned2020-08-05T10:58:07Z
dc.date.available2020-08-05T10:58:07Z
dc.date.issued2014-06-25cs
dc.description.abstractSix grades of TiAl alloys doped with 7 at.% Nb and variable content of C and/or Mo were studied. The as-received microstructure and phase composition of the alloys was characterized using neutron diffraction experiments and electron microscopy. They are substantially different in individual alloys. In Mo containing alloys, ordered beta0 phase is present while carbon suppresses the occurrence of this phase. Alternating lamellae of gamma and alpha2 phases are characteristic for all specimens. The specimens have been subjected to monotonic testing (tensile and compression) and to low cycle fatigue testing at ambient and at elevated temperatures. The differences in microstructure result in scatter of mechanical behaviour of the alloys, e.g. the yield stress at 750C varies from 445 to 626 MPa. The mechanical properties of the materials are discussed in relation to the initial microstructure and phase composition.en
dc.description.abstractBylo studováno šest typů TiAl slitin legovaných 7 at.% Nb a různým množstvím C a/nebo Mo. Charakterizace mikrostruktury „as-received“ stavu a složení fází byla provedena pomocí neutronové difrakce a elektronové mikroskopie. Vzorky byly podrobeny monotónním testům (tah a tlak) a také nízkocylkové únavě jak za pokojových tak za zvýšených teplot. Rozdíly v mikrostruktuře vedou k různým mechanickým vlastnostem jednotlivých typů slitin.cs
dc.formattextcs
dc.format.extent405-408cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationProcedia Engineering. 2014, vol. 74, issue 1, p. 405-408.en
dc.identifier.doi10.1016/j.proeng.2014.06.289cs
dc.identifier.issn1877-7058cs
dc.identifier.other108928cs
dc.identifier.urihttp://hdl.handle.net/11012/194748
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofProcedia Engineeringcs
dc.relation.urihttps://www.sciencedirect.com/science/article/pii/S1877705814008595cs
dc.rightsCreative Commons Attribution-NonCommercial-NoDerivatives 3.0 Unportedcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1877-7058/cs
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/cs
dc.subjectTiAl alloysen
dc.subjectmicrostructureen
dc.subjectneutron diffractionen
dc.subjectfatigueen
dc.subjectTiAl slitiny
dc.subjectmikrostruktura
dc.subjectneutronová difrakce
dc.subjectúnava
dc.titleMonotonic and cyclic properties of TiAl alloys Monotic and cyclic properties of TiAl alloys doped with Nb, Mo and Cen
dc.title.alternativeMonotónní a cyklické vlastnosti TiAl slitin legovaných Nb, Mo a Ccs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-108928en
sync.item.dbtypeVAVen
sync.item.insts2020.08.05 12:58:07en
sync.item.modts2020.08.05 12:16:22en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav materiálových věd a inženýrstvícs
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