The role of scaling factor and deformation mechanisms in refinement of metal structure
Dependences have been defined to show the increasing accumulation of the charge and tensor dislocation densities in metals and the formation of finer grains due to the increase of scaling factor - the ratio between the area of deformation site surface and the volume. Fig. 1. Dependence of dislocation charge density accumulation on deformation degree s for nickel sample and on cross-section <i>R</i> Fig. 2. Dependence of low-angle fragment size <i>df </i>in nickel on deformation degree e and cross-section <i>R</i>