Proceedings of the Korean Institute of Surface Engineering Conference (한국표면공학회:학술대회논문집)

The Korean Institute of Surface Engineering (한국표면공학회)
권호 표지

Tribological and Corrosion Behavior of Multilayered $WC-Ti_{1-x}Al_xN$ Coatings Deposited by Cathodic Arc Deposition Process on High Speed Steel

  • S.H. Ahn (SungKyunKwan University, Department of Advanced materials engineering) ;
  • J.H. Yoo (SungKyunKwan University, Department of Advanced materials engineering) ;
  • Park, Y.S. (SungKyunKwan University, Department of Advanced materials engineering) ;
  • Kim, J.G. (SungKyunKwan University, Department of Advanced materials engineering) ;
  • Lee, H.Y. (SungKyunKwan University, Department of Advanced materials engineering) ;
  • J.G. Han (SungKyunKwan University, Department of Advanced materials engineering)
  • Published : 2001.11.01
Download PDF
⟨ Previous Next ⟩

Abstract

Recently, many of the current development in surface modification engineering are focused on multilayered coatings. Multilayered coatings have the potential to improve the tribological and corrosion properties of tools and components. By using cathodic arc deposition, $WC-Ti_{1-x}Al_xN$ multilayers were deposited on steel substrates. Wear tests of four multiplayer coatings were performed using a ball-on-disc configuration with a linear sliding speed of 0.1m/s, 5N load. The tests were carried out at room temperature in airby employing AISI 52100 steel ball ($H_v=848N$) of 11mm in diameter. Electrochemical tests were performed using the potentiodynamic and electrochemical impedance spectroscopy (EIS) measurements. The surface morphology and topography of the wear scars of tribo-element and the corroded specimen have been determined by using scanning electron spectroscopy (SEM). Also, wear mechanism was determined by using SEM coupled with EDS. Results have showed an improved wear resistance and corrosion resistance of the $WC-Ti_{1-x}Al_xN$ coatings.

Keywords