Microstructure and Mechanical Properties of (TiB+Nd_2O_3)/Ti Composites
Ti matrix composites were synthesized through the reaction among Ti, B2O3 and rare earth Nd by ingot metallurgy. The effect of rare earth Nd addition on the microstructure and mechanical properties of composites were investigated using scanning electronic microscope and transonic electron microscope. It is showed that the reinforcements of composites are TiB and Nd2O3 which are distributed uniformly in the matrix. The interfaces between reinforcement s of Nd2O3 and Ti matrix are clear without any interfacial reaction. The shape of Nd2O3 particles are fine plate, lath shape and nodular shape with increasing of Nd content in the Ti matrix. Nd addition can improve the plasticity and high temperature strength of composites.