US 12,442,060 B2
Cemented carbide
Yasuki Kido, Osaka (JP); Yoshihiro Kimura, Osaka (JP); and Anongsack Paseuth, Osaka (JP)
Assigned to SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka (JP)
Appl. No. 18/713,208
Filed by Sumitomo Electric Industries, Ltd., Osaka (JP)
PCT Filed Sep. 26, 2023, PCT No. PCT/JP2023/035010
§ 371(c)(1), (2) Date May 24, 2024,
PCT Pub. No. WO2025/069214, PCT Pub. Date Apr. 3, 2025.
Prior Publication US 2025/0101549 A1, Mar. 27, 2025
Int. Cl. C22C 29/08 (2006.01); C22C 29/06 (2006.01)
CPC C22C 29/08 (2013.01) [C22C 29/067 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A cemented carbide comprising a plurality of tungsten carbide grains and a binder phase,
wherein the cemented carbide comprises the tungsten carbide grains and the binder phase in a total of 89% by volume or more,
the cemented carbide comprises 1.8% by volume to 20.0% by volume of the binder phase,
the binder phase contains cobalt,
the cemented carbide contains 1.0% by mass or more of cobalt, and
a Young's modulus of the binder phase at 25° C. is 170 GPa to 198 GPa, as measured by a nanoindenter method.