Abstract

Rolling and recrystallization textures of Al-single crystals have been measured with great accuracy. In all cases a clear 40° 〈111〉-orientation relationship was found. An analyses of these results and also of those of the literature led to the conclusion 1. (i) that this relationship is definitely a result of oriented growth, 2. (ii) that the nuclei effective in the present experiments were part of the deformed matrix with orientations near the edge of the spread of the deformation texture and 3. (iii) that the selection of the observed ± 40° 〈111〉-orientations out of the eight possible ones is determined by the availability of nuclei. Strong arguments were found that, in contrast to recent opinion [11]. also in polycrystalline A1 oriented growth is largely responsible for the observed recrystallization textures.

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