Sub-structure development in face-centered cubic monocrystals and polycrystal grains during cold-rolling was modelled by using evolution equations for the densities of redundant cell wall and non-redundant fragment boundary dislocations, as well as of mobile and immobile disclinations in 6 cell wall and fragment boundary families. The slip rates for the 12 face-centered cubic slip systems were calculated. The critical resolved shear stresses were derived from the dislocation and disclination densities. The model was able to predict cell-wall and fragment boundary spacings, as well as misorientations, which were in reasonable agreement with experimental data for Al.

Modelling the Initial Stage of Grain Subdivision with the Help of a Coupled Substructure and Texture Evolution Algorithm. M.Seefeldt, L.Delannay, B.Peeters, E.Aernoudt, P.Van Houtte: Acta Materialia, 2001, 49[12], 2129–43