High Temperature Strength of WC-Co Base Cemented Carbide Having Highly Oriented Plate-Like Triangular Prismatic WC Grains (特集 硬質材料) High Temperature Strength of WC-Co Base Cemented Carbide Having Highly Oriented Plate-Like Triangular Prismatic WC Grains

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Author(s)

Abstract

We have already reported that room temperature fracture toughness of our newly developed WC-Co base cemented carbide (alloy) having highly oriented plate-like triangular prismatic WC grains are larger than that of the conventional alloy at an identical hardness of alloy. In this study, high temperature mechanical properties such as transverse-rupture strength (TRS), creep-rupture time, etc., of the new alloy at 1273 K were clarified to be superior than those of the conventional alloy: TRS of the new alloy was higher by 10-20% and creep rupture time was longer by 50-100% than the conventional alloy. The cause for such superiority was attributed to the difficulty in the generation and propagation of stable cracks in the new alloy compared with in the conventional alloy, probably due to more rigid skeleton of WC which were generated and grown by the reaction of Co<SUB>x</SUB>W<SUB>y</SUB>C<SUB>z</SUB> with graphite.

Journal

  • Journal of the Japan Society of Powder and Powder Metallurgy

    Journal of the Japan Society of Powder and Powder Metallurgy 49(4), 299-305, 2002-04-15

    Japan Society of Powder and Powder Metallurgy

References:  9

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008222584
  • NII NACSIS-CAT ID (NCID)
    AN00222724
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    05328799
  • NDL Article ID
    6146249
  • NDL Source Classification
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL Call No.
    Z17-274
  • Data Source
    CJP  CJPref  NDL  J-STAGE 
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