... metal powder metallurgy process through made of a kind of alloy material. Hard alloy with high hardness, wear resistance, strength and toughness is ... the same, in 1000 °C still has a high hardness. Hard alloy is widely used as a tool materials, such as turning ... for machining, such as knife, used for cutting cast iron, non-ferrous metals, plastics, chemical fiber, graphite, glass, stone material and ...