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Metal matrix composites (MMCs) based on AA2218 alloy have been successfully developed by stirring powder mix of TiO2 particles along with Al2O3 particles prepared by milling into the alloy melt. The chemical reaction of TiO2 particles with molten Al alloy results in alumina and simultaneously releases into the alloy elemental titanium, which forms intermetallic phase Al3Ti in the last freezing liquid...