TRANSITION METAL-INCLUDED TUNGSTEN CARBIDE, TUNGSTEN CARBIDE DIFFUSED CEMENTED CARBIDE, AND PROCESS FOR PRODUCING SAME

摘要

Disclosed is a tungsten alloy carbide powder as a tungsten carbide that comprises a transition metal element forcibly dissolved as a solid solution, and is suitable as a material for cemented carbides. A diffused cemented carbide that is comparable with the conventional tungsten carbide diffused cemented carbide and comprises a solid solution phase of at least one transition metal element selected from the group consisting of cobalt, iron, nickel, and manganese, tungsten, and carbon, included in a tungsten carbide skeleton can be provided by carbonizing a powder of a tungsten alloy that comprises at least one transition metal element selected from the group consisting of cobalt, iron, and nickel dissolved as a solid solution in a tungsten grating and exhibits a peak derived from a bcc tungsten phase in an X-ray diffraction diagram.