The structures of <110> symmetrical tilt grain boundaries, with tilt angles of between 0 and 50.5, were investigated. Computer simulations, lattice statics techniques, and EAM potentials were used to identify the lowest-energy structures at 0K. The stability of the structures at high temperatures was studied by means of Monte Carlo annealing simulations. It was found that, whereas the structural unit model was applicable to Al boundaries, it could not be used to describe Ni structures. It was noted that the grain boundary dislocation cores in Al boundaries were more localized than they were in Ni.

J.D.Rittner, D.N.Seidman: Materials Science Forum, 1996, 207-209, 333-6