Papers by Author: C. Gundlach

Abstract: 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.

Abstract: A new method for in-situ studies of nucleation in bulk metals based on high energy synchrotron radiation is presented. Copper samples cold rolled 20% are investigated. The crystallographic orientations near triple junctions are characterized using non-destructive 3DXRD microscopy before, during, and after annealing for 1 hour at 290°C. This method allows in-situ identification of new nuclei and the deformed material, which spawns the nuclei. Also, since data is acquired during annealing nucleation kinetics can be studied.