TEXTURE TRANSFORMATION DURING ANNEALING. IN-SITU MEASUREMENTS AND COMPUTER MODELLING

During annealing of deformed metals and alloys, for example during recrystallization, a large crystallography reorientation, or change in texture usually occurs, In-situ measurements of such texture Transformations can give important information about the kinetics of the recrystallization and may offer new possibilities for process control and for texture tailoring. In the paper the formation of recrystallization textures in cold rolled, medium and high stacking fault fee materials is shortly reviewed. A technique for on-line texture determination by neutron diffraction is described. It is shown how this technique may be used for in-situ kinetic investigation of recrystallization and the results are compared to those of model simulations. The potential of the technique for problems related to metallurgical practice is demonstrated by an approach of texture tailoring in commercially pure aluminium. Finally it is discussed how the technique may be used in the study of hot working.