Characterization of Failure Behavior in Distorted WC-Co Tip of Coal Mining Picks
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The present paper deals with the characterization of failure behavior in the cemented carbide (WC 94–Co 6%) tips of two cutters, i.e., conical cutter and radial cutter, which were used for coal cutting operation in an underground mine. High-resolution microscopes (FESEM and EDS) were used to assess wear mechanisms. The cemented carbide has been studied for its wear behavior for a long time. The ongoing research is necessary because wear mechanisms cannot be classified in single way. The variations in application of the tools may change the tribological characteristics in the cemented carbide. In this study, mainly four wear mechanisms, such as Cracks, Abrasion, Corrosion, and Intermixing of external elements, have been reported.
KeywordsCemented carbide Conical pick Radial pick Coal mining Failure behavior Characterization
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