On recrystallization texture formation in polycrystalline fcc alloys with low stacking fault energies

The texture and microstructure transformations during the annealing of highly cold-rolled silver, a-brass and phosphorus copper were studied using electron microscopy and calorimetry. The results imply that recrystallization is a superposition of several local processes which proceed in two stages. In all materials analyzed, the first stage is governed by oriented nucleation, comprising the nucleation of new grains in the areas of localized strain and their further growth accompanied by the generation of recrystallization twins. The orientation distributions of nuclei and the new grains of all materials analyzed have certain features in common at the beginning of recrystallization. The second stage in phosphorus copper is governed by oriented nucleation, while in silver and in alpha-brass, it is dominated by oriented growth of grains, characterized by low orientation pinning.