The current state of the understanding of grain boundary and triple junction migration in metals was reviewed. The migration of <112> planar tilt symmetrical and asymmetrical grain boundaries in specially grown Bi-bicrystals, driven by magnetic force, and the dependence of grain boundary mobility on temperature, driving force and direction of motion were considered. The motions of low- and high-angle planar tilt <112> and <111> grain boundaries due to shear stresses, and the peculiarities of such motion, were considered. A sharp transition from low- to high-angle boundaries was observed. In practice, the motion of a straight grain boundary was the exception. The shape of a moving grain boundary was a source of new insights concerning grain boundary migration. The experimentally derived shape of a grain boundary in Al bicrystals was compared with theoretical calculations performed within the Lucke-Detert approximation.

Grain Boundary and Triple Junction Migration. L.S.Shvindlerman, G.Gottstein: Materials Science and Engineering A, 2001, 302[1], 141–50