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

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• 作者：Sakuntala Nahak ; Saurabh Dewangan…
• 关键词：Cemented carbide ; Conical pick ; Radial pick ; Coal mining ; Failure behavior ; Characterization
• 刊名：Journal of Failure Analysis and Prevention
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：17
• 期：1
• 页码：136-143
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Tribology, Corrosion and Coatings; Characterization and Evaluation of Materials; Classical Mechanics; Structural Mechanics; Quality Control, Reliability, Safety and Risk;
• 出版者：Springer US
• ISSN：1864-1245
• 卷排序：17

文摘

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.