Effect of process parameters on the densification of 2124 Al-20 vol.% SiCp composites fabricated by explosive compaction

This paper explores the possibility of producing metal-matrix composites using the explosive compaction method. Attempts have been made to compact powders of 2124 Al and silicon carbide. The effect of the explosive pad thickness and related parameters such as the impact energy imparted to the powder and the ratio of the explosive mass to the powder mass (E-m/P-m) on the density of the compacts have been studied. Microstructural variations with respect to the processing conditions have been investigated also. The compacted 2124-20 vol.% SiCp composite specimens have been subjected to hot rolling at 520 degrees C and age hardened. The tensile properties of the composites have also been evaluated. (C) 1998 Elsevier Science S.A.