Influence of Ti on the Tensile Properties of the High-Strength Powder Metallurgy High Entropy Alloys

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dc.contributor.authorMoravčík, Igorcs
dc.contributor.authorGamanov, Štěpáncs
dc.contributor.authorMoravčíkova de Almeida Gouva, Larissacs
dc.contributor.authorKovacova, Zuzanacs
dc.contributor.authorKitzmantech, Michaelcs
dc.contributor.authorNeubauer, Erichcs
dc.contributor.authorDlouhý, Ivocs
dc.coverage.issue3cs
dc.coverage.volume13cs
dc.date.accessioned2020-08-04T11:03:16Z
dc.date.available2020-08-04T11:03:16Z
dc.date.issued2020-01-26cs
dc.description.abstractThe focus of this study is the evaluation of the influence of Ti concentration on the tensile properties of powder metallurgy high entropy alloys. Three Ni1.5Co1.5CrFeTiX alloys with X = 0.3; 0.5 and 0.7 were produced by mechanical alloying and spark plasma sintering. Additional annealing heat treatment at 1100 °C was utilized to obtain homogenous single-phase face centered cubic (FCC) microstructures, with minor oxide inclusions. The results show that Ti increases the strength of the alloys by increasing the average atomic size misfit i.e., solid solution strengthening. An excellent combination of mechanical properties can be obtained by the proposed method. For instance, annealed Ni1,5Co1,5CrFeTi0.7 alloy possessed the ultimate tensile strength as high as ~1600 MPa at a tensile ductility of ~9%, despite the oxide contamination. The presented results may serve as a guideline for future alloy design of novel, inclusion-tolerant materials for sustainable metallurgyen
dc.formattextcs
dc.format.extent0-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2020, vol. 13, issue 3, p. 0-18.en
dc.identifier.doi10.3390/ma13030578cs
dc.identifier.issn1996-1944cs
dc.identifier.other161621cs
dc.identifier.urihttp://hdl.handle.net/11012/193415
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/13/3/578cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectmulti principal element alloyen
dc.subjecttensile strengthen
dc.subjectfractureen
dc.subjectductilityen
dc.subjectpowderen
dc.titleInfluence of Ti on the Tensile Properties of the High-Strength Powder Metallurgy High Entropy Alloysen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-161621en
sync.item.dbtypeVAVen
sync.item.insts2020.08.04 13:03:16en
sync.item.modts2020.08.04 12:23:47en
thesis.grantorVysoké učení technické v Brně. Fakulta strojního inženýrství. Ústav materiálových věd a inženýrstvícs
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