Dislocation Cores and Unconventional Properties of Plastic Behavior

摘要: Dislocations are line defects found in all crystalline materials and their motion produces plastic flow. The notion of dislocations has two starting points. First, the dislocation was introduced as an elastic singularity by considering deformation a body occupying multiply connected region space. Secondly, were into crystal physics when analyzing large discrepancy between theoretical experimental strength crystals. These approaches intertwined since sources long-ranged stresses strains that can be examined continuum framework. In fact, bulk theory employs elasticity broad variety phenomena encountered plastically deforming crystals [1, 2, 3, 4].