Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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A STUDY ON WEAR AND CORROSION RESISTANCE OF CrN$_{x}$ FILMS BY CATHODIC ARC ION PLATING PROCESS

  • Han, Jeon-G. (Plasm Applied Materials Lab., Department of Metallurgical Engineering, Sung Kyun Kwan University) ;
  • Kim, Hyung-J. (Plasm Applied Materials Lab., Department of Metallurgical Engineering, Sung Kyun Kwan University) ;
  • Kim, Sang-S. (Plasm Applied Materials Lab., Department of Metallurgical Engineering, Sung Kyun Kwan University)
  • Published : 1996.10.01
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Abstract

$CrN_x$ films were deposited on SKD61 and S45C by cathodic arc ion plating process. In this study, the microstructure, microhardness, a hesion, wear and corrosion properties of the CrNx films were studied for various nitrogen partial pressures and the results were compared with those from the electroplated hard Cr. The crystal structure of the films was characterized by X-ray diffraction. Wear tests were performed under no lubricant condition at atmosphere by ball-on-disc type tribotester. Corrosion resistance of the films were studied by electrochemical corrosion test, measuring current demsity-potential curves. The results indicated that the $CrN_x$ films formed using ion plation method showed higer hardness and lower current density, friction coefficient than electroplated hard Cr. Consequently, the application of the CrNx coationgs by ion plating which is free of environmental pollution, is expected to improve lifetime of components in industrial practice.

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