Increased room temperature formability of Mg AZ31 by high speed Friction Stir Processing.

Highlights: [•] High speed FSP was performed on Mg AZ31 at processing speeds between 1 and 10m/min. [•] Process zone EBSD analysis revealed deformation prone microstructure and texture. [•] The TMAZ featured low aspect ratio grains, with high mounts of HAB. [•] Formability tests revealed increases of up to 100% over the base material. [•] Local anisotropy was most present in the tensile regime of the FLD. [Copyright &y& Elsevier]