Advanced Ceramics Progress

Advanced Ceramics Progress

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

Document Type : Original Research Article

Authors
Parinaz Pirmohammadi 1
Mohammad Zakeri 2
Mansour Razavi 3
Leila Nikzad 2
1 PhD Student, Department of Ceramics, Materials and Energy Research Center, Karaj, Iran.
2 Associate Professor, Department of Ceramics, Materials and Energy Research Center, Karaj, Iran.
3 Professor, Department of Ceramics, Materials and Energy Research Center, Karaj, Iran.
10.30501/acp.2023.420137.1135
Abstract
There is a growing interest in researching materials to produce wear-resistant composites. The current study aims to investigate the impact of adding 2.5 vol% diamond on the wear behavior of the WC-6% wt. Co composite. The samples were first fabricated using the spark plasma sintering method at 1300 °C for five minutes under the pressure of 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 results from the worn surfaces analysis, 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. According to the SEM images, abrasive wear was the main wear mechanism in the WC-Co composite while the 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
Diamond/WC-Co Composite
Spark Plasma Sintering . Wear Rate. Wear Mechanism

Subjects

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