Abstract:The effect of trace yttrium on cube texture of high-purity aluminum foils has been investigated by means of orientation distribution functions (ODFs). The results show that a small addition of yttrium to high-purity aluminum brings about a considerable increment of the cube texture, and it reduces the content of R texture. The rare earth yttrium may combine with the other impurities to form the metallic compounds, such as FeYAl₈, Fe₆YAl₆, Fe₄YAl₈ and Si₂YAl₂. When the precipitation of these particles in the matrix is nearly completed and the Fe concentration in the matrix becomes low, the cube texture can develop well and the  R texture can be suppressed.

Key words: high-purity aluminium; rare earth; cube texture; deformation texture