Cemented carbide and cutting tool
AssigneeSumitomo Electric Hardmetal Corp.
InventorsYasuki KIDO, Yuki TANAKA, Takahiro SEKIYA
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AssigneeSumitomo Electric Hardmetal Corp.
InventorsYasuki KIDO, Yuki TANAKA, Takahiro SEKIYA
Estimating the term…
A cemented carbide of the present disclosure is a cemented carbide comprising a first hard phase and a binder phase, wherein a total content of the first hard phase and the binder phase is 80.0 vol % or more, a content of the binder phase is a range from 5.0 vol % to 21.0 vol %, a cobalt content of the binder phase is 50 mass % or more, a percentage (H200/H25)×100 of a hardness H200 of the cemented carbide at 200° C. to a hardness H25 of the cemented carbide at 25° C. is a range from 85% to 100%, a ratio c/M of a specific heat c of the cemented carbide at 200° C. to a content M of the binder phase is a range from 0.028 to 0.042, the content M of the binder phase is the range from 3.0 mass % to 13.0 mass %, and a unit of the specific heat c is J/g·K.
A cemented carbide comprising a first hard phase consisting of a plurality of tungsten carbide particles and a binder phase containing cobalt, wherein
Dependencies are inferred from the claim text.