TEM STUDY OF RECRYSTALLIZATION IN ULTRA-FINE GRAIN AA3104 ALLOY PROCESSED BY HIGH-PRESSURE TORSION

摘要

The effect of annealing on the microstructure and the texture development was investigated in a particle containing AA3104 aluminium alloy. The samples were processed at room temperature by high-pressure torsion (HPT) up to ten turns. The nucleation of new grains was analyzed by a transmission electron microscope equipped with a system for local orientation measurements and a heating holder.