ON THE FORMATION OF RECRYSTALLIZATION TEXTURES IN BINARY AL-1.3-PERCENT MN INVESTIGATED BY MEANS OF LOCAL TEXTURE ANALYSIS

The development of the recrystallization textures of high purity Al-1. 3% Mn is analysed with dependence on the degree of deformation, the an nealing temperature and, particularly, the precipitation state prior t o deformation. Besides X-ray macrotexture analysis, local orientation measurements by electron diffraction in a SEM (EBSD) and in a TEM (MEE D) are applied. A combination of these three techniques permits orient ation determination with increasing spatial resolution and yields a mu ch more fundamental understanding about the underlying recrystallizati on mechanisms than is possible using solely one of these techniques. T he recrystallization textures are characterized by a competition betwe en cube-oriented grains which nucleate at band-like structures and gra ins due to particle stimulated nucleation (PSN). The evolution of the resulting textures is discussed in terms of formation and subsequent g rowth of the recrystallization nuclei. Copyright (C) 1996 Acta Metallu rgica Inc.