Creep (deformation) - Mechanisms of Creep

Mechanisms of Creep

The mechanism of creep depends on temperature and stress. The various methods are:

  • Bulk diffusion (Nabarro-Herring creep)
  • Climb — here the strain is actually accomplished by climb
  • Climb-assisted glide — here the climb is an enabling mechanism, allowing dislocations to get around obstacles
  • Grain boundary diffusion (Coble creep)
  • Thermally activated glide — e.g., via cross-slip

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