Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Comparison of HVOF Thermal Spray Coatings of T800 and WC-Co Powders

  • Cho, T.Y. (School of Nano Advanced Materials Engineering, Changwon National University) ;
  • Yoon, J.H. (School of Nano Advanced Materials Engineering, Changwon National University) ;
  • Kim, K.S. (School of Nano Advanced Materials Engineering, Changwon National University) ;
  • Baek, N.K. (School of Nano Advanced Materials Engineering, Changwon National University) ;
  • Song, K.O. (School of Nano Advanced Materials Engineering, Changwon National University) ;
  • Youn, S.J. (Sermatech Korea Co., Ltd.) ;
  • Hwang, S.Y. (Research Institute of Industrial Science & Technology) ;
  • Chun, H.G. (School of Materials Science & Engineering, University of Ulsan)
  • Published : 2006.12.31
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Abstract

Hard chrome plating has been used in surface hard coating over 50 years both for applying hard coating and re-building of worn components. Hard chrome plating solution and mist pollute environment with very toxic $Cr^{6+}$(hex-Cr) known as carcinogen which causes lung cancer, High velocity oxy-fuel (HVOF) thermal spray coatings of WC base cermet and Co-alloy powders are the most promising candidates for the replacement of the traditional hard chrome plating. Surface properties, wear, and friction behaviors of micron size Co-alloy (T800) and micron size WC-l2Co (WC-Co) have been studied for the application as hard coatings. The temperature dependence of wear and friction behaviors of T800 and WC-Co have been investigated at the temperature of $25^{\circ}C$ and $538^{\circ}C$ for the application to high speed spindle.

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References

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