A theory was developed for dislocation motion on the combined potential surface which was formed by superposing extended Peierls-Nabarro barriers and local obstacles. A mixed mode of dislocation motion, which was intermediate between the Peierls and Friedel regimes, was predicted and studied. The specific features of material plasticity near to the transition between the regimes were described in detail. A new method was suggested for the decomposition of 2 hardening mechanisms when determining material parameters from experimental data. The present theory was applicable to body-centered cubic dilute solid solutions, semiconductors and other materials having a high potential relief of the crystal lattice.

Unification of the Peierls and Friedel Models into a General Combined Theory of Dislocation Pinning. B.V.Petukhov: Materials Science and Engineering A, 1997, 234-236, 177-80