Journal of Failure Analysis and Prevention

, Volume 17, Issue 1, pp 136–143 | Cite as

Characterization of Failure Behavior in Distorted WC-Co Tip of Coal Mining Picks

  • Sakuntala Nahak
  • Saurabh Dewangan
  • Somnath Chattopadhyaya
  • Sergej Hloch
Technical Article---Peer-Reviewed


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.


Cemented carbide Conical pick Radial pick Coal mining Failure behavior Characterization 


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Copyright information

© ASM International 2016

Authors and Affiliations

  • Sakuntala Nahak
    • 1
  • Saurabh Dewangan
    • 2
  • Somnath Chattopadhyaya
    • 3
  • Sergej Hloch
    • 4
  1. 1.Department of Mechanical EngineeringJaypee University of Engineering and TechnologyGunaIndia
  2. 2.Department of Mechanical EngineeringNational Institute of Science and TechnologyBerhampurIndia
  3. 3.Department of Mechanical EngineeringIndian Institute of Technology (ISM)DhanbadIndia
  4. 4.Faculty of Manufacturing TechnologiesTechnical University of Kosice with a Seat in PresovPresovSlovakia

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