Physics of the Solid State

, 53:1614

Homogeneous nucleation of dislocations

Mechanical Properties, Physics of Strength, and Plasticity

DOI: 10.1134/S1063783411080221

Cite this article as:
Norman, G.E. & Yanilkin, A.V. Phys. Solid State (2011) 53: 1614. doi:10.1134/S1063783411080221

Abstract

The mechanism and stochastic properties of the homogeneous nucleation of dislocations have been studied. An approach has been proposed for determining the nucleation rate based on consideration of the lifetimes of a metastable state. Primary data have been obtained using the molecular dynamics method. The dependences of the nucleation rate on the shear stresses have been determined for several temperatures. An approximation of the obtained results in terms of the Arrhenius equation has been proposed. The regions of shear stresses and temperatures in which the mechanism of homogeneous dislocation nucleation can be realized have been estimated.

Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  1. 1.Scientific Association for High TemperaturesRussian Academy of SciencesMoscowRussia
  2. 2.Moscow Institute of Physics and Technology (State University)Dolgoprudnyi, Moscow RegionRussia