An alternative method of processing MMCs by CAR process

A technique, called CAR (continual annealing and roll-bonding) process, was used to manufacture an aluminum matrix composite dispersed with 15 vol.% alumina particles. The microstructure of the fabricated composites after 13 cycles of the CAR showed an excellent distribution of alumina particles in the aluminum matrix. The results also indicated that the tensile strength of the composites increased as the number of CAR cycles increased. Moreover, the tensile strength of the composite was 1.8 and 1.5 times higher than the same values obtained for annealed and monolithic aluminum strips, respectively, while the elongation value decreased slightly.