High strength Al–Sc alloy was impacted at strain-rates ranging from 1.2 x 103 to 5.8 x 103/s at room temperature. The deformation behaviour of Al–Sc alloy was highly dependent upon the strain rate. A higher strain rate increased the dislocation density, thereby reducing the size of the dislocation cells.

Rate-Dependent Deformation and Dislocation Substructure of Al–Sc Alloy. W.S.Lee, T.H.Chen: Scripta Materialia, 2006, 54[8], 1463-8