抄録
The multiscale simulation method for the damage evolution in irradiated materials is presented. It is shown that the bias effect plays an important role in the damage evolution, such as void swelling and others. The bias effects in general can be categorized into two, dislocation bias and production bias, and basic behaviors for these processes are investigated from the viewpoint of (i) the interaction between a dislocation and point defects and defect clusters, and (ii) one dimensional motion of interstitial clusters (bundled crowdions). Not only the atomistic features in a model lattice (in the region of smaller scale), but also the elastic features in the elastic body (in the region of larger scale) are presented. From these fundamental studies the prediction of the damage evolution in materials under irradiation will become available.
