The results of phase-field simulations of a 2-dimensional model of dislocation microstructure development under increasing strain were presented that incorporated the effects of a full 3-dimensional microstructure in an approximate way. In spite of its simplicity, the model yielded quantitative predictions of both the deformation properties of face-centered cubic metals as well as key features of the evolving microstructure for a wide ranges of stress and strain. These results had important implications for the interpretation and description of the deformation properties of face-centred cubic materials.

Dislocation Structures and the Deformation of Materials. M.Koslowski, R.LeSar, R.Thomson: Physical Review Letters, 2004, 93[26], 265503 (3pp)