Grain boundary dislocations: Their effect on vacancies and sliding

Publisher Website
Google Scholar
Abstract
When a grain interior dislocation meets a grain boundary it can move along the latter by a mixture of climb and glide. Vacancies are then cmitted or absorbed and sliding is caused in amounts depending on the orientation of the dislocation's Burgers vector, which in turn depends on the grain orientation. The consequence is that emission and absorption of vacancies by grain boundaries, and also sliding, depend on the orientation with respect to the applied stress of the grains as well as of the grain boundaries.