The nucleation and subsequent development of the Portevin-Le Chatelier bands during tensile deformation in a binary AlMg alloy was investigated by digital image correlation technique. following states material were employed for current investigation: coarse-grained (CG), fine-grained (FG) after equal channel angular pressing (ECAP), severely strained (SS) ECAP followed cold rolling. Special att...

The generation of a high density twins few tens nanometers in size can enhance both strength and ductility. present work aims to produce highly twinned microstructure Cu-6wt% Zn alloy moderate stacking fault energy (SFE) by equal channel angular pressing (ECAP) using die with angles ϕ=110° Ψ=0. X ray diffraction (XRD) shows that defects is stored up 2 passes then recovery takes place. EBSD imag...

Equal Channel Angular Pressing (ECAP) is currently being widely investigated because of its potential to produce ultrafine grained microstructures in metals and alloys. A sound knowledge of the plastic deformation and strain distribution is necessary for understanding the relationships between strain inhomogeneity and die geometry. Considerable research has been reported on finite element analy...

High-resolution electron backscatter diffraction (EBSD) was used to examine the grain structure in long rods of ultrafine-grain (UFG) commercial-purity titanium produced for medical implants. The UFG material was obtained by equal channel angular pressing (ECAP) using a Conform scheme followed by rod drawing. The microstructure was found to be bimodal consisting of relatively coarse elongated g...

Increasing the yield stress of twinning-induced plasticity (TWIP) steels is a demanding task for modern materials science. This aim can be achieved by microstructure refinement induced heavy straining. We feature microstructural evolution and mechanical performance high-manganese TWIP steel subjected to deformation treatment different combinations equal channel angular pressing (ECAP) rolling a...

Abstract The main aim of the current work is to investigate effect equal channel angular pressing (ECAP) processing parameters, namely, number passes, ECAP die angle, route type, and temperature on mechanical electrical properties pure copper (Cu). finite element method was used simulate homogeneity stress plastic strain distribution during processing. response surface methodology (RSM) identif...