EXPLOSIVE INDENTATION STUDY OF B_4C-TiAl_x COMPOSITES FABRICATED BY THE DIPPING EXOTHERMIC REACTION PROCESS

摘要

The aim of this study is to fabricate a high volume fraction B_4C-reinforced intermetallic matrix composite by the dipping exothermic reaction process and investigate the shock impact damage response of composites by explosive indentation experiment. It has been shown that the final microstructure of the dipping exothermic reaction process-fabricated composite can be tailored by treatment of the constituent powders and post heat treatment. The hardness and impact damage resistance of the fabricated composites were evaluated.