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Mechanical, Microstructure And Texture Properties Of Interstitial-Free Steel And Copper Subjected To Equal Channel Angular Extrusion And Cold-Rolling, A A. Gazder, S S. Hazra, C F. Gu, W Q. Cao, C H J Davies, E V. Pereloma
Mechanical, Microstructure And Texture Properties Of Interstitial-Free Steel And Copper Subjected To Equal Channel Angular Extrusion And Cold-Rolling, A A. Gazder, S S. Hazra, C F. Gu, W Q. Cao, C H J Davies, E V. Pereloma
Faculty of Engineering - Papers (Archive)
Interstitial-free steel and OFHC copper were subjected to 8 passes, route BC room temperature ECAE followed by cold-rolling up to 97.5% thickness reduction. Uniaxial tensile tests and Electron Back-Scattering Diffraction were used to characterise the evolution in mechanical properties, microstructure refinement and micro-texture. IF-steel showed continuous increase in strength whereas Cu returned reduced strength and a small gain in ductility at 97.5% reduction. In both metals substructure refinement was accompanied by an increase in high-angle boundary fraction, average misorientation and a slight increase in Σ3 boundaries. An evolution of crystallographic orientations from negative shear to predominantly cold-rolled textures after …