Effects of Precompression on the Surface Toughness of WC-5% Co

  • Silvana Bartolucci Luyckx


During the 1960’s and early 1970’s several papers were published describing changes in the properties of WC-Co alloys resulting from prior compressive loading. The studies most relevant to the present work are those which describe the effects of: (a) plastic strains of up to 0.5% in WC-6% Co on resistivity, coercivity, bending strength and yield stress, by Ivensen and co-workers1; (b) plastic strains, in uniaxial compression, of up to 1% in WC-5.9% Co on hardness, coercivity and h.c.p./f.c.c. cobalt ratio, by Hara and Ikeda2; (c) plastic strains of more than 10% under non uniform triaxial compressive stress on resistivity, hardness, coercivity and compressive strength, by Pelepelin3; (d) uniaxial compression applied to WC-6% Co on the residual tensile stress in the cobalt, by Tumanov and co-workers4.


Crack Length Residual Compressive Stress Crack Resistance Intergranular Crack Horizontal Crack 
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    V.A. Ivensen, V.A. Chistyakova and O.N. Eiduk, Changes in the properties of WC-Co hard alloys during deformation, Poroshk. Met. 129: 39 (1973).Google Scholar
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    A. Hara and T. Ikeda, Behaviour of compressive deformation of WC-Co cemented carbide, Trans.Jap.Inst. Met. 13:128 (1972).Google Scholar
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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • Silvana Bartolucci Luyckx
    • 1
  1. 1.Boart Basic Research Group, Physics DepartmentUniversity of the WitwatersrandJohannesburgSouth Africa

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