HARD ALLOY MATERIAL, PRODUCTION METHOD, AND TOOL AND WEAR RESISTANT MEMBER

摘要

PROBLEM TO BE SOLVED: To provide a tungsten carbide based hard alloy material, to provide a production method for the hard alloy material, and to provide a tool and a wear resistant member containing the hard alloy material. SOLUTION: The hard alloy material contains a hard phase mainly made up of tungsten carbide and a binder phase contacted with the hard phase, unevenly distributed and mainly made up of copper. The hard alloy material may have a hardness of 1,000 to 2,000 Hv5 in Vickers hardness. The hard alloy material can be obtained by mixing the powder of tungsten carbide particles and the powder of copper particles (S103) and performing sintering under pressure (S105). At that time, the tungsten carbide particles having an average particle diameter of 100 to 300 nm can be used. COPYRIGHT: (C)2009,JPO&INPIT