SIMULATION OF DISLOCATION DYNAMICS IN FCC METALS

Motion of dislocations was studied by means of molecular dynamics simu lation. The embedded atom method (EAM) potential is used to express th e non-central nature of atomic interaction in metals. A new EAM potent ial expressed by simple functions has been developed and used in the s imulation. The equilibrium configuration of atoms and the motion of di slocations in Cn and Ag crystals were carefully investigated. From the change of the kinetic energy and the position of the dislocation, the Peierls potential was estimated.