Criteria for slip transfer across grain and twin boundaries in pure Ni

Slip transfer at grain boundaries and annealing twin was studied in polycrystalline Ni by means of slip trace analysis. or blocking assessed >200 related with geometrical criteria that establish the alignment between active systems across boundaries. It found mainly occurs low-angle regular a Luster–Morris parameter >0.8 stands for best criterion to assess transfer. In case coherent incoherent boundaries, when residual Burgers vector is close zero through dislocation cross-slip.