Cell Structures

Subgrain Dislocation Structures in metals

Hughes et al.; Cell Structures in Stage III hardening

• Stage I, II: dislocations tangle

• Stage III: dislocations arrange into mats or walls, separating nearly dislocation-free cells

• Cells differ from grains
  • Smaller misorientation angles q
  • Different origin, evolution

• Cells get smaller as deformation continues: cell refinement

Is there scaling? Do late stages look like early ones shrunk?

SC

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