Microstructure and Mechanical Properties of New WC-Co Base Cemented Carbide Having , Highly Oriented Plate-Like Triangular Prismatic WC Grains.

• Kinoshita Satoshi

  Toshiba Tungaloy Co., Ltd.

• Saito Takeshi

  Toshiba Tungaloy Co., Ltd.

• Kobayashi Masaki

  Toshiba Tungaloy Co., Ltd.

• Hayashi Koji

  Institute of Industrial Science. The University of Tokyo

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.

収録刊行物

• 粉体および粉末冶金

  粉体および粉末冶金 47 (5), 526-533, 2000

  一般社団法人 粉体粉末冶金協会

キーワード

• cemented carbides
• orientation
• anisotropy
• tungsten carbide
• plate-like
• prismatic

詳細情報

• CRID: 1390282681284549120
• NII論文ID: 10005137820
• NII書誌ID: AN00222724
• DOI: 10.2497/jjspm.47.526
• COI: 1:CAS:528:DC%2BD3cXlt1Crurc%3D
• ISSN: 18809014
• ISSN: 05328799
• ISSN: http://id.crossref.org/issn/05328799
• NDL書誌ID: 5352597
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5352597
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可