DEFORMATION AND RECRYSTALLIZATION TEXTURES OF COPPER SINGLE-CRYSTALS AND BICRYSTALS

Recrystallization textures in rolled copper specimens have been investigated so as to elucidate the mechanisms of cube texture formation. The specimens are single crystals with the orientations corresponding to the main components of the rolled textures, such as {112} [111], {110} [112], etc. and bicrystals consisting of such oriented crystals. The cube texture was not observed in any single crystal specimens, but observed in only two bicrystal specimens with {112} [111]/ {100} [001] and {110} [112]/ {100} [001] orientations. The formation of cube texture seems to require the existence of a cube oriented region in the deformed state, and the favourable oriented matrix to allow the growth of such nuclei.