Influence of solution temperature on microstructure and properties of in-situ TiB2/2009 composites

The hardness and tensile properties of the in-situ TiB2/2009 composites are increasing with the solution temperature within the certain temperature ranges above the eutectic temperature. It is because that the dissolution of the intermetallic particles is enhanced with the solution temperature while the incipient melting regions are confined inside the TiB2 particle shells.