emented carbide of WCCo powder with crystalline size of about 10 nm was directly synthesized from elemental powders by mechanical alloying. Cold compacting was carried out at 800 Mpa using a manual uniaxial press. Sin...emented carbide of WCCo powder with crystalline size of about 10 nm was directly synthesized from elemental powders by mechanical alloying. Cold compacting was carried out at 800 Mpa using a manual uniaxial press. Sintering of the compacted samples was performed in vacuum in the temperature range of 1040～1350℃. The sintered density, crystallite size and microhardness of sintered samples were measured. The effects of a little VC addition on grain size, density and hardness of WCCo alloy were also presented.展开更多
文摘emented carbide of WCCo powder with crystalline size of about 10 nm was directly synthesized from elemental powders by mechanical alloying. Cold compacting was carried out at 800 Mpa using a manual uniaxial press. Sintering of the compacted samples was performed in vacuum in the temperature range of 1040～1350℃. The sintered density, crystallite size and microhardness of sintered samples were measured. The effects of a little VC addition on grain size, density and hardness of WCCo alloy were also presented.
