Purcek G.Yanar H.Demirtas M.Alemdag Y.Shangina D.V.Dobatkin S.V.20.04.20192019-04-2020.04.20192019-04-2020160921-5093https://dx.doi.org/10.1016/j.msea.2015.09.111https://hdl.handle.net/20.500.12403/664Properties of Cu-Cr-Zr alloy with ultrafine-grained (UFG) structure produced by equal-channel angular pressing (ECAP) via different routes have been investigated. Special attention was paid to the optimization of multi-functional structural, thermal, electrical and mechanical properties of the alloy by aging of UFG one. Multi-pass ECAP via different routes gives rise to the formation of a deformation-induced submicrocrystalline structure with the grain (subgrain) sizes in the range of 200-300. nm depending on applied routes which leads to high hardness and strength in the Cu-Cr-Zr alloy with reduced ductility. Amongst the applied routes, route-Bc was found to be the best processing path for achieving the lowest grain size, the highest hardness and strength. Aging of 8Bc-processed UFG samples increases the hardness and strength of Cu-Cr-Zr alloy while retaining an electrical conductivity comparable to that of aged coarse-grained (CG) one. A satisfactory electrical conductivity of 71%IACS without considerable loss of peak hardness was achieved after aging of 8Bc-processed UFG alloy at 425. °C for 240. min. The precipitation strengthened UFG alloy remains its stable behavior at elevated temperatures up to 450. °C. © 2015 Elsevier B.V.eninfo:eu-repo/semantics/closedAccessAgingCopper alloysEqual-channel angular pressingMechanical propertiesAging of materialsCopper alloysDuctilityElectric conductivityGrain size and shapeHardnessMechanical propertiesPrecipitation (chemical)Pressing (forming)Zirconium alloysCu-Cr-Zr alloysElectrical and mechanical propertiesElectrical conductivityElevated temperatureMulti-functionalProcessing pathsSubmicrocrystalline structuresUltrafine grained structureEqual channel angular pressingAgingCopper alloysEqual-channel angular pressingMechanical propertiesAging of materialsCopper alloysDuctilityElectric conductivityGrain size and shapeHardnessMechanical propertiesPrecipitation (chemical)Pressing (forming)Zirconium alloysCu-Cr-Zr alloysElectrical and mechanical propertiesElectrical conductivityElevated temperatureMulti-functionalProcessing pathsSubmicrocrystalline structuresUltrafine grained structureEqual channel angular pressingOptimization of strength, ductility and electrical conductivity of Cu-Cr-Zr alloy by combining multi-route ECAP and agingArticle64911412210.1016/j.msea.2015.09.1112-s2.0-84943627751Q1WOS:000364796400014Q1