COMPARISON OF EXPERIMENTAL AND PREDICTED DISLOCATION NETWORKS IN DEFORMATION-INDUCED DISLOCATION BOUNDARIES ALIGNED WITH SLIP PLANES IN ALUMINIUM

摘要

Deformation-induced planar dislocation boundaries aligned with slip planes in the 45° ND rotated Cube orientation in aluminium after rolling have recently been characterised in depth. In parallel the dislocation content of such boundaries has been predicted based on the Frank equation, i.e. assuming that the boundaries are low-energy-dislocation-structures (LEDS) free of long-range elastic stresses. A detailed comparison of the experimentally determined and theoretically predicted dislocation networks is presented. The comparison encompasses all the parameters in the Frank equation, i.e. the Burgers vectors, dislocation line directions, dislocation densities, misorientation and boundary plane.