US 11,913,096 B1
Cemented carbide and tool containing the same
Yasuki Kido, Osaka (JP); Yoshihiro Kimura, Osaka (JP); and Anongsack Paseuth, Osaka (JP)
Assigned to SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Appl. No. 18/265,257
Filed by Sumitomo Electric Industries, Ltd., Osaka (JP)
PCT Filed Nov. 18, 2022, PCT No. PCT/JP2022/042888
§ 371(c)(1), (2) Date Jun. 5, 2023,
.
Int. Cl. C22C 29/02 (2006.01)
CPC C22C 29/02 (2013.01) 7 Claims
OG exemplary drawing
 
1. A cemented carbide composed of a first hard phase, a second hard phase and a binder phase,
wherein the first hard phase is composed of tungsten carbide particles,
the second hard phase is composed of at least one first compound selected from the group consisting of TiNbC, TiNbN and TiNbCN,
the second hard phase has an average particle diameter of 0.25 μm or less,
the second hard phase has a dispersity of more than 0.70 and 17.0 or less,
a content of the second hard phase is 0.1 vol % or more and 15 vol % or less,
the binder phase contains at least one first element selected from the group consisting of iron, cobalt and nickel, and
a content of the binder phase is 0.1 vol % or more and 19.0 vol % or less.