Bicrystal studies of diffusion-induced grain boundary migration in Cu/Zn

In this article, we present results of systematic studies of the effects of grain boundary parameters upon diffusion-induced grain boundary migration (DIGM). It is shown that grain boundary velocity, solute penetration depth, concentration of deposited solute, and activation energy are all strongly and reproducibly dependent upon the grain boundary parameters. The effects are also somewhat different in the cases of symmetrical and asymmetrical boundaries, indicating the importance of the boundary inclination. It is shown that the observed differences can be rationalized in terms of the variations of the driving force for DIGM and the grain boundary mobility.