以WC-Co为代表的超硬合金,具有硬度和断裂韧性高的特点,已广泛用于各种切削刀具和耐磨构件。由于只有极少数国家生产钨原料,WC的原料价格飞涨。为此,采用WC-Co涂层材,部分替代WC-Co烧结块材,以减少WC使用量,应是一种可行的方法。 WC-Co represented by the cemented carbide, with high hardness and fracture toughness has been widely used in various cutting tools and wear-resistant components. Because only a handful of countries produce tungsten raw materials, WC’s raw material prices soar. To this end, the use of WC-Co coating material, partially replaced WC-Co sintered block, in order to reduce the amount of WC should be a viable approach.