The Proceedings of the Materials and Mechanics Conference
Online ISSN : 2424-2845
2014
Session ID : OS2117
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OS2117 Effect of stress ratio on crack growth behavior of fine grained WC-Co cemented carbide
Hiroko MIKADOSotomi ISHIHARANoriyasu OgumaKenichi MASUDAShingo KAWAMURA
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Abstract
It is well known that WC-Co cemented carbides have an excellent wear resistance. However, information about their fatigue crack growth behavior is limited. In the present study, the fatigue crack growth behavior of the fine grained WC-Co cemented carbide was investigated as a function of the stress ratio, R. The crack growth rate, da/dN, depends upon the stress intensity range, ΔK, and R. This feature is similar to that of ceramics than that of metallic materials.
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© 2014 The Japan Society of Mechanical Engineers
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