Effects of ball milling and particle size on microstructure and properties 5083 Al–Ni composites fabricated by friction stir processing

Ni particles were incorporated in a 5083 Al alloy matrix by friction stir processing (FSP) to fabricate metal particle reinforced composite. During the optimization of the process parameters for uniform particle distribution, it was found that ball-milled finer particles (10 μm) were dispersed more uniformly in the matrix compared to as-received coarse particles (70 μm). Hence, the particles were ball-milled before incorporating into 5083 Al...