Effect of Nd content on microstructure and mechanical properties of Grf/Al composite

► Al3Mg2, Al4C3 and Al11Nd3 phases were observed at C-Al interface. ► The size and amount of Al4C3 phase were increased with Nb content. ► A transition layer along C-Al interface was observed by HRTEM. ► Bending strength of Grf/Al composites were decreased sharply with Nb content. ► The increased Nd content decreased the pull-out of single fibre and bundles.