Length scale effects on the geometric softening of precipitated single crystals

The understanding of the conditions under which inelastic deformation evolv es in precipitated gamma/gamma' single crystal materials requires analytica l and numerical frameworks which incorporate both time and spatial-dependen t behaviour. In this work, an existing rate-dependent crystallographic form ulation is employed to investigate the effect of the normalised length scal e associated with the soft gamma channel width on the geometric softening c aused by the activation of additional slip systems due to large lattice rot ations.