Cemented carbide and cutting tool using same

This cemented carbide comprises: a first phase comprising tungsten carbide particles; and a second phase including cobalt as a main component. The total content of the first phase and the second phase in the cemented carbide is 97 vol% or more, the average value of the circle-equivalent diameters of...

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Bibliographische Detailangaben
Hauptverfasser: MIYASAKA, NOBUO, YAMAMOTO, TSUYOSHI, HIROSE, KAZUHIRO, UCHINO, KATSUYA, YAMAKAWA, TAKAHIRO
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:This cemented carbide comprises: a first phase comprising tungsten carbide particles; and a second phase including cobalt as a main component. The total content of the first phase and the second phase in the cemented carbide is 97 vol% or more, the average value of the circle-equivalent diameters of the tungsten carbide particles is 0.8 [mu]m or less, the cobalt content of the cemented carbide is 3-10 mass%, the vanadium content of the cemented carbide is 0.01-0.30 mass%, and the maximum value of the vanadium content in an interface region between the second phase and the (0001) crystal planes of the tungsten carbide particles is 15 at% or less.