Abstract
Preferential growth of cube-oriented grains through grain boundary migration was investigated by microfocused X-ray diffraction. In aluminum 99.99% purity, cube textures with small orientational spread develop when rolled to 90% reduction, partially annealed up to the recrystallization percentages 5 to 40, and additionally rolled to 30% reduction. Cube grains surrounded by deformed matrix are deformed by additional rolling. Cube grains which cause sharp Laue spots at the same position to the asterisms due to the strained cube grains grow into deformed matrix before non-cube grains recrystallize from the deformed matrix upon annealing. Strained cube grains recover without reorientation, and consequently coalesce with strain-free cube grains. Migration of boundary of cube grains and recovery of the strained cube grains take place as easily as the orientations of cube grains are closer to the ideal orientation (001) [100].
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