EBSD investigation of Al/(Al Fe +Al O ) nanocomposites fabricated by mechanical milling and friction stir processing.

The application of ball-milling for reactant powders (Fe O +Al) to form in situ nanosized reaction products in the stir zone of 1050 aluminium alloy was examined and the evolution of microstructure, grain boundaries and microtexture of the fabricated Al/(Al Fe +Al O ) nanocomposite was investigated. The mean matrix grain size of the fabricated nanocomposites by the combination of ball milling and friction stir processing were found to be ∼3.2, 3.