PROCESSING, MICROSTRUCTURE AND PROPERTIES OF 2124 AL-SIC(P) COMPOSITES

The achievement of uniform and reproducible properties in silicon carb ide particulate-reinforced 2124 aluminum alloy matrix composites produ ced by the powder metallurgy route requires proper selection of the va rious processing parameters and steps. The effect of various processin g parameters and steps on the microstructure and mechanical properties of 2124 Al/SiC(p) is considered; it is shown that secondary processin g, such as extrusion or section rolling and a homogenization treatment , is essential if optimum properties are to be achieved.