The concept of statistically stored and geometrically necessary dislocations was discussed in terms of observed deformation microstructures subdivided by incidental dislocation and geometrically necessary boundaries. This discussion was illustrated by examples of microstructures formed under conditions of homogeneous and inhomogeneous deformation, respectively.

Geometrically Necessary Boundaries, Incidental Dislocation Boundaries and Geometrically Necessary Dislocations. D.A.Hughes, N.Hansen, D.J.Bammann: Scripta Materialia, 2003, 48[2], 147-53