Dislocation interactions with tilt walls

The flow of plastic deformation in polycrystalline materials can be due to activation of sources in adjacent grains due to the effect of pile up dislocations against the grain boundary and also through the transmission of dislocations across the grain boundary. In this paper, we focus on these two issues by studying the evolution of resolved shear stress as a result of pile up dislocations against the boundary and understanding the basic phenomena of dislocation transmission through grain boundary. We also investigated the relaxed structures a grain boundary acquires after the process of dislocation transmission.