Microstructures and mechanical properties of the Al2014 composites reinforced with bimodal sized SiC particles

The (micron+nano) bimodal sized SiCp/Al2014 composites fabricated by semi-solid stirring exhibited fine α-Al grains, well-dispersed bimodal sized SiCp and well-bonded interface between SiCp and matrix. The yield and ultimate tensile strength of the extruded bimodal sized SiCp/Al2014 composites were significantly enhanced, compared to the extruded single-sized SiCp/Al2014 composites.