Nano-meso scale simulations of lattice defects dynamics

Tsuru, Tomohito   

The dislocation-grain-boundary process is fundamental to the improvement of the mechanical properties of metallic materials. This process contributes significantly to plastic deformation as well as dislocation-dislocation interactions. These lattice defects have been effectively utilized for material strengthening as determined by the Hall-Petch relationship. However, it becomes well-known that the individual defect structure plays a great role in the whole materials system. In this study, we have developed nano-mesoscale simulation methods to understand defects dynamics under deformation since these materials characteristics are derived from mesoscopic behavior.