Micro-texture misorientation distributions and orientation correlations were investigated in weakly and strongly textured states which were obtained during recrystallization and grain growth of the pure metal. A predominance of S3n boundaries (where n was equal to 1, or more) was found in specimens with a weak texture, while mainly low-angle and S3 boundaries were observed in the strongly textured state. The misorientation distribution of nearest-neighbors in face-centered cubic materials which were prone to annealing twinning was known to be influenced by the matrix-twin orientation correlation. Such a correlation was prominent here in specimens with a weak texture. The influence of this orientation correlation was significantly reduced in the presence of a strong texture. In strongly-textured samples, S3 boundaries could be divided into 2 groups: true twin boundaries (boundaries between a twin and its matrix) and boundaries between a twin and a non-matrix neighbor with an orientation that was close to that of the matrix grain. The 2 groups were characterized by differing morphologies of the S3 boundaries and by differing deviations from the exact twin relationship.

Statistical Characteristics of Grain Boundary Ensembles in Variously Textured Copper. O.V.Mishin: Journal of Materials Science, 1998, 33[21], 5137-43