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.
