Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Friction and Wear Behaviors of WC-Co/WC-Co Pairs in Air

  • Hosokawa, H. (Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology (AIST)) ;
  • Nakajima, T. (Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology (AIST)) ;
  • Shimojima, K. (Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology (AIST))
  • Published : 2006.09.24
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Abstract

To investigate sliding friction and wear behaviors of WC-Co/WC-Co pairs containing different WC grain sizes, the ball-on-disc test in air were carried out, where WC grain sizes a $0.5\;{\mu}m$ (F.G.) and $1.5\;{\mu}m$ (C.G.). The wear volume of F.G. pin for F.G. pin/C.G. disc is larger than that of F.G. pin for F.G. pin/F.G. disc due to higher friction coefficient, and the surfaces after wear test are richer in oxygen compared to those before test. Furthermore, the wear debris, which is composed of nona-scale grain, after the wear test are remarkably richer in oxygen than to those before test.

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