Wear and friction properties of multilayer hard coatings by HTCVD method

Yiǧit R., Özdemir I., Çelik E., Uyulgan B., Aksoy T.

Proceedings of the 8th Conference and Exhibition of the European Ceramic Society, İstanbul, Turkey, 29 June - 03 July 2003, vol.264-268, pp.585-588, (Full Text) identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 264-268
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.585-588
  • Keywords: HTCVD, Multilayer coatings, Wear/Friction
  • Ankara Yıldırım Beyazıt University Affiliated: No

Abstract

This paper concerns the wear and friction properties of multilayer hard coatings on WC-(Ti, Ta, Nb, W)C-Co hard metal substrates for cutting tool applications. The multilayer hard coatings with TiCN+TiC+TiCN+Al 2O3+TiN configuration were deposited at the temperatures of 800-1000°C by using a high temperature chemical vapour deposition (HTCVD) process. The multilayer coatings were characterized by X-ray diffraction, and scanning electron microscopy (SEM). It was found that all multilayer coatings have a dense and homogeneous surface morphology. The multilayer hard coatings (BK-247) with 7.5 μm showed the best wear resistance under 50 N. It as also determined that the Ti-410 specimens with 10.5 μm thick had the best wear resistance at 200 N.