The dependence of grain-boundary migration upon misorientation and upon the impurity content was considered. It was found that impurity-drag theory, when extended so as to include the interaction of adsorbed impurities in the boundary, accounted quite well for the observed concentration dependence of the grain-boundary mobility. A first experimental study of triple-point motion was also presented.

Grain Boundary Migration in Metals: Recent Developments. G.Gottstein, D.A.Molodov, L.S.Shvindlerman: Interface Science, 1998, 6[1-2], 7-22