粉体および粉末冶金
Online ISSN : 1880-9014
Print ISSN : 0532-8799
ISSN-L : 0532-8799
Microstructure and Mechanical Properties of New WC-Co Base Cemented Carbide Having Highly Oriented Plate-Like Triangular Prismatic WC Grains
Satoshi KinoshitaTakeshi SaitoMasaki KobayashiKoji Hayashi
著者情報
ジャーナル オープンアクセス

2000 年 47 巻 5 号 p. 526-533

詳細
抄録
We developed a process for fabrication of new WC-Co base cemented carbides with highly oriented plate-like triangular prismatic WC grains. The characteristic of the fabrication process is that W +graphite mixed powder is used as the starting material for WC phase, instead of WC powder; the other fabrication conditions are the same as conventional ones. A large amount of triangular planes, i.e., (0001) crystal planes of WC grains in the sintered alloy were highly oriented vertically to the powder die-compaction direction. The new alloy showed generally higher fracture toughness and transverse-rupture strength than conventional alloy at an identical Co content, mean free path of binder phase or hardness, especially when the crack propagation direction is parallel or vertical to the powder diepressing direction.
著者関連情報
© Japan Society of Powder and Powder Metallurgy

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