Abstract
The motion of balls in a vibratory mill during mechanical alloying was analyzed by computer simulation using a one-dimensional model of milling process. The model consists of visco-elastic balls and a one-dimensional vessel which vibrates in the virtical direction. In this model, energy consumption by mechanical alloying of powder particles during impact of balls was considered as the energy loss by viscous resistance during impact of the visco-elastic balls. The impact force or the impact energy obtained by the simulation was related to the microhardness, crystallite size and lattice strain of the powder particles which were mechanically alloyed by vibratory milling.