In-Situ Observation of Subgrain Evolution during Static Recovery of Cold-Rolled Aluminium

A method for in-situ studies of the dynamics of individual embedded subgrains during recovery is introduced. The method is an extension of 3DXRD principles for studies of grain dynamics in connection with recrystallisation. It is limited to studies of foils with a sample thickness of 10-100 subgrains due to diffraction spot overlap. The volume evolution during recovery (annealing at 300°C for 181 minutes) of nine individual subgrains in a deformed sample (38% cold rolled Aluminium) is presented.