The partial dislocation model for the deformation mechanism of nanocrystalline materials was extended to consider the influence of non-uniform dislocation extension. The non-uniform partial dislocation extension model was more consistent with experimental data than the original partial dislocation model. Additionally, the flow stress obtained from the non-uniform extension model was compared with that from the Hall–Petch relation.

A Modified Model for Deformation via Partial Dislocations and Stacking Faults at the Nanoscale. P.Gu, B.K.Kad, M.Dao: Scripta Materialia, 2010, 62[6], 361-4