The Role of Diamond on Wear Properties of WC-Co Composite

Articles in Press

Document Type : Original Research Article

Authors

1 Ceramics Department, Materials and Energy Research Center, Karaj, Iran

2 Ceramics Department, Materials and Energy Research Center, Meshkindasht, Alborz, Iran

3 Research Department of Ceramic, Materials and Energy Research Center (MERC), Meshkin Dasht, Alborz, Iran

4 Department of Ceramic, Materials and Energy Research Center, Karaj, Iran

Abstract

There is a growing interest in researching materials to produce wear-resistant composites. This current study investigates the influence of adding 2.5 vol% diamond on the wear behavior of the WC-6% wt Co composite. The samples were fabricated using the spark plasma sintering method at 1300 °C for 5 minutes under 40 MPa. The pin-on-disk method was employed to study the wear behavior, followed by evaluating the worn surfaces using SEM analysis. According to the analysis of the worn surfaces, the addition of diamond to the WC-Co composite reduced the wear rate from 0.34×10-4 mm³/N·m to 0.25×10-4 mm³/N·m. Based on SEM images, abrasive wear was the main wear mechanism in the WC-Co composite, while abrasive, adhesive, and oxidation mechanisms were the primary wear mechanisms in the WC-Co sample reinforced with diamond phase. The presence of diamond as a hard phase within WC-Co composite significantly improved the wear resistance of the composite.

Keywords

Main Subjects

Advanced Ceramics Progress

Articles in Press, Accepted Manuscript
Available Online from 25 September 2023

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History

  • Receive Date: 10 October 2023
  • Revise Date: 22 October 2023
  • Accept Date: 25 October 2023

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