The matrix material ZA27 alloy was used in the production of metal composite material. SiC and graphite were as reinforcement materials study. with 10% SiC, 2.5% , 5% 7.5% + 5%, 7.5%, by weight hybrid produced. microstructures examined SEM EDS results discussed. In investigations, graphites had a heterogeneous nucleating effect during solidification alloy. addition, thin dendrites showed tenden...