The motion of a screw dislocation under the action of ultrasound was simulated with account taken of its cross-slip in a spatially non-uniform stress field created by a fixed dislocation of the same sense. Only dislocations started from certain regions in the space were shown to undergo cross-slip. The variations in the sizes and shapes of these regions with the ultrasound parameters, crystallographic orientation of the sample, and coefficient of dynamic viscosity were given.

The Cross Slip of a Dislocation in an Ultrasound Field and Its Dependence on the Ultrasound Amplitude and Frequency, Sample Orientation, and Dynamic Viscosity. N.A.Tyapunina, G.V.Bushueva, M.I.Silis, D.S.Podsoblyaev, Y.B.Likhushin, V.Y.Bogunenko: Physics of the Solid State, 2003, 45[5], 880-5