強冷延した（１１２）［１￣１￣１］方位のアルミニウム単結晶における再結晶集合組織

Abstract

Aluminum single crystals in the (112) [111] orientation were cold-rolled to 99% reduction. The main component of rolling textures changed from the initial orientation towards (4 4 11) [11 11 8] orientation above 80% rolling but it was sharp up to the maximum reduction. The weak intensity areas were observed spreading over the pole figures. The minor component which was symmetrical to the main component with respect to the transverse direction, was formed at 90% rolling and developed with increasing reduction. The deformation structure of a totated cube orientation was observed in the (100) pole figure of the crystal cold-rolled 99%. The recrystallization textures were composed of a (1 1 10) [7 3 1] orientation which was appropximately related to the cube orientation by 22° rotation around the normal direction. Any orientation change from (1 1 10) [7 3 1] to (001) [100] was not found with an increase in rolling reduction. The formation of the rotated cube texture is attributed to preferential nucleation from the deformation structure in the same orientation. The deformed matrix of S-orientation might be required for development of the cube texture of good symmetry.