Preparation and High-Temperature Property of WC/Cu Composite

The microstructure and property of WC/Cu composite which was prepared using mechanical alloying(MA) were investigated respectively.As a result,the sintered material followed by cold deformation had a fibrous microstructure,a uniform distribution of WC particles,and a considerably increased density,achieving 99\^2% of theoretical density.The plasticity of composite annealed at the temperature of 873 to 1173K increased considerably coupled with a slight decrease in strength and hardness.No obvious recrystallization was observed and the material exhibited an excellent thermal stability even at 1173K.