TEXTURE EVOLUTION DURING MULTI-PASS EQUAL CHANNEL ANGULAREXTRUSION OF BERYLLIUM

摘要

Equal channel angular extrusion (ECAE) is applied to refine grains in beryllium (Be),using die angles of 90° and 120° via route Bc. Comparison of the experimental texturesmeasured by neutron diffraction and the ideal orientations predicted by crystal plasticitysimulations suggests that the main deformation mechanisms during ECAE of this material are