POWDER OF TUNGSTEN ALLOY WITH TRANSITION METAL DISSOLVED THEREIN AS SOLID SOLUTION AND PROCESS FOR PRODUCING SAME

摘要

Disclosed is a powder of a tungsten alloy with a transition metal dissolved therein as a solid solution that is suitable as a material for a cemented carbide represented by formula [1] and a material for a catalyst.  The powder of the tungsten alloy is characterized in that at least one transition metal element selected from the group consisting of cobalt, iron, manganese, and nickel is dissolved as a solid solution in a tungsten grating and a peak derived from a bcc tungsten phase appears in an X-ray diffraction diagram. Formula [1]: M-W wherein M represents one or more elements selected from Co, Fe, Mn, or Ni. The use of the powder of the tungsten alloy can provide a tungsten carbide with a transition metal dissolved therein as a solid solution in which a solid solution phase of at least one transition metal element selected from the group consisting of cobalt, iron, manganese, and nickel, tungsten, and carbon is included in a tungsten carbide skeleton, and a tungsten carbide diffused cemented carbide.