Biaxial deformation behavior and formability of precipitation hardened ultra-fine grained (UFG) Cu-Cr-Zr alloy

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dc.authorid0000-0002-9378-3870en_US
dc.contributor.authorSaray, Onur
dc.date.accessioned2021-03-20T20:14:40Z
dc.date.available2021-03-20T20:14:40Z
dc.date.issued2016
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractThe combined effects of ultrafine-grained (UFG) microstructure and precipitation on the formability and biaxial deformation behavior of a Cu-Cr-Zr alloy were investigated. The UFG microstructure formation results in good formability with an Erichsen index (Ei) of 4.05 mm compared to that of peak-aged coarse grained (CG) alloy (3.95 mm). Aging heat treatments increase strength and formability of the UFG alloy simultaneously. Biaxial deformation behavior is found to be dependent on the strain hardenability. Excellent strain hardenability of the CG alloy brought about higher punch displacement within the membrane stretching regime. However, deformation localization with the early onset of necking is evident in the UFG alloy. Subsequent aging treatments decrease deformation localization behavior of UFG alloy with increasing aging durations. Results also show that both grain refinement and aging increased the punch load due to enhanced strength. A linear relationship is generated based on punch load vs. punch displacement curve slope to predict ultimate tensile strength (UTS) with high accuracy. It is concluded that synergetic effect of UFG microstructure formation and subsequent aging provides a simple and effective procedure to produce Cu-Cr-Zr alloy for applications where balance of strength and formability are needed. (C) 2016 Elsevier B.V. All rights reserved.en_US
dc.identifier.doi10.1016/j.msea.2016.01.021en_US
dc.identifier.endpage129en_US
dc.identifier.issn0921-5093
dc.identifier.issn1873-4936
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage120en_US
dc.identifier.urihttp://doi.org/10.1016/j.msea.2016.01.021
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1089
dc.identifier.volume656en_US
dc.identifier.wosWOS:000373316300016en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorSaray, Onur
dc.language.isoenen_US
dc.publisherElsevier Science Saen_US
dc.relation.ispartofMaterials Science And Engineering A-Structural Materials Properties Microstructure And Processingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectUltra-fine grained materialsen_US
dc.subjectFormabilityen_US
dc.subjectAgingen_US
dc.subjectErichsen testen_US
dc.subjectBiaxial deformationen_US
dc.subjectEqual channel angular extrusionen_US
dc.titleBiaxial deformation behavior and formability of precipitation hardened ultra-fine grained (UFG) Cu-Cr-Zr alloyen_US
dc.typeArticleen_US

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