STUDY OF DEFORMATION OF ALUMINIUM ALLOY IN EQUAL CHANNEL ANGULAR MATRIX WITH QUASI-SMALL CHANNELS INTERSECTION ANGLE

Abstract

This article is described the various possible schemes of severe plastic deformation, by ECAP process that allows receiving metal with ultrafine-grained structure. The results of computer simulation and TEM investigations of aluminium alloy 6060 were presented. It is shown that the equal-channel angular pressing in the proposed matrix with a quasi-starched channel joint angle 45° provides the formation of a homogeneous subgrain structure with a size about 0.5 µm and has a positive effect on the mechanical properties of the aluminium alloy.