(TiC+TiB2)/Al-2Cu composites have been prepared by a new technology,two-step method,based on MCR and LSM methods.The distribution of TiC and TiB2 particles is more homogeneous than that of single particulate reinforced composites,and the real homogeneous inter-phase distribution of TiC and TiB2 particles in Al-2Cu matrix is realized by T4 heat treatment.The melting-start temperature,solidifying-start temperature,melting latent heat and solidifying latent heat of(TiC+TiB2)/Al-2Cu are enlarged compared with A...