Influence of precipitation on the development of cube texture in Al-Mn alloy.

Abstract

Development of cube texture during final annealing in Al-1.1%Mn alloy containing manganese as in solid solution and as a precipitate phase after partial recrystallization and moderate deformation was investigated by optical and electron microscopy, and X-ray diffraction. The frequency of formation of cube grain at partial recrystallization stage plays an important role because of the preferential growth of cube grain by strain induced boundary migration. In this case, sharp cube texture shows a spread of orientation around axis parallel to the rolling direction. Precipitation of Al6Mn prior to final annealing results in formation of retained rolling texture and the development of cube texture is suppressed.