Development of RQ Al composites by new process

Ten volume percent of Al2O3-TiC ceramic particle reinforced Al 5083 and Al 6061 alloy composites were successfully fabricated with high strength by co mbining twin rolling, a newly devised stone mill type crushing and hot extr uding. Crushing and composing procedures are enlightened in this work. Both composites showed high UTS, although, Al 5083 alloy composites were effect ively strengthened by the rapid solidification, whereas ill 6061 composite by heat treating. No reaction product was found to firm between the matrix and reinforcement interfaces, due to no severe thermal exposure of this pro cess. (C) 2001 Elsevier Science B.V. All rights reserved.