WC/Co-TiB2 hard alloy and preparing method thereof

The invention discloses a WC/Co-TiB2 hard alloy composite material subjected to hot press sintering. The WC/Co-TiB2 hard alloy composite material comprises (90.57, 89.04 and 87.38)% of WC powder with the granularity being 0.8 micron, (7.88, 7.74 and 7.60)% of Co powder with the granularity being 0.8 micron and (1.55, 3.22 and 5.02)% of TiB2 powder with the granularity being 1.2 microns; and the above raw materials are mixed with absolute ethyl alcohol for burdening, sintering forming is conducted after drying, and the alloy composite material is prepared. Meanwhile, the invention discloses a preparing method of the above WC/Co-TiB2 hard alloy composite material, a complex sample can be sintered, the obtained composite material has good mechanical performance and corrosion resistance, meanwhile has good electric conductivity in a high-temperature environment and is suitable for batched production, and good commercial value is achieved. The WC/Co-TiB2 hard alloy composite material can be widely applied to produ