The behavior of dislocations which were dissociated into 2 partials, and were not freely mobile on the dissociation plane, was studied within the framework of a model where the frictional force was described by a simple Peierls-Nabarro potential. In addition to dislocations which exhibited the equilibrium separation of their partials, metastable partial dislocation separations were also considered. Monte Carlo techniques were used to study the dynamics of dislocation processes, including the effect of an applied stress. Changes in the dislocation width distribution, that were caused by thermally activated jumps between dislocation states with differing dissociation widths, were investigated for various initial configurations of the simulated dislocation ensemble.

Behavior of Dissociated Dislocations with Sessile Cores. V.Paidar: Materials Science and Engineering A, 1995, 192-193, 142-8