comparison of plastic anisotropy and crystallographic texture evolution of aluminum 1100 between 90° and 135° ecae processes

A rolled sheet of aluminum 1100 was processed by two ecae dies with inner corner angles of 90° and 135°. the samples were processed using route a up to 4 and 10 passes in ecae 90° and 135°, respectively. the mechanical behaviors of initial and processed materials were evaluated by nano-indentation and compression tests carried out at three different orthogonal directions, at room temperature. crystallographic texture evolution during two different ecae processes has been also studied. a considerable reduction in mechanical anisotropy is displayed for processed materials compared to the initial material by nano-indentation tests. though there is appreciable progress in mechanical isotropy for processed materials by 135° ecae, compared to the 90° case. studying crystallographic texture evolutions reveals that ecae 135° is more capable than ecae 90° in the development of cube components; however, the rate of texture evolution is slower in ecae 135°. dissimilar prominent texture components are also developed by two different ecae processes.