Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Study on the Splat Formation of Ni-based Thermal Sprayed Coatings

니켈기 용사코팅의 스플랫 형성에 관한 연구

  • Kim, K.T. (Department of Mechanical & Automotive Engineering, Pukyong National University) ;
  • Lee, S.S. (Department of Mechanical & Automotive Engineering, Pukyong National University) ;
  • Lee, D.H. (Department of Mechanical Engineering, Pukyong National University) ;
  • Kim, Y.S. (Department of Mechanical & Automotive Engineering, Pukyong National University)
  • Received : 2011.07.20
  • Accepted : 2011.11.24
  • Published : 2012.04.30
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Abstract

Thermal spray coatings developed by deposition of splats, it formed by impacting molten droplets on substrates during thermal spray process. In this study, the Ni-based coatings were fabricated by thermal spray process with two different process parameters, oxygen gas flow and acetylene gas flow, with three different levels of each parameters. The morphology of splats and microstructure were observed by optical microscope. Hardness test were performed on the Ni-based coatings. It was confirmed that process parameters of thermal spray process have effect in morphology of splats. These effects also have important implications on the deposit microstructure and properties of Ni-based coatings.

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References

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