Refinement of microstructure and improvement of mechanical properties of Al/Al2O3 cast composite by accumulative roll bonding process

▶ Increasing the number of ARB cycles greatly improved the uniformity of Al2O3 particles. ▶ When the strain increased during rolling processes, porosity decreased. ▶ The strength of the composites improved when the number of ARB cycles increased. ▶ By increasing the number of ARB cycles, the elongation value improved.