Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Anti-Corrosion Characteristics of WC-based Alloy Coatings Fabricated by HVOF Process - Polarization Characteristics in Acid Solution -

HVOF 용사법에 의해 제조된 WC계 합금 코팅층의 방식특성(I) - 산성용액에서의 분극특성 -

  • Kim, Tae-Yong (Graduate School of Pukyong National University) ;
  • Kim, Yeong-Sik (Department of Mechanical & Automotive Engineering, Pukyong National University)
  • Received : 2014.01.22
  • Accepted : 2014.07.22
  • Published : 2014.08.31
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Abstract

The aim of this study to investigate polarization characteristics of WC-based alloy coatings fabricated by high velocity oxygen fuel(HVOF) process. The coatings were fabricated by HVOF process with WC-CrC-Ni, WC-Co-Cr, WC-Co composite powders. Corrosion tests were carried out using potentiostat/galvanostat at solution with pH 2 and pH 6. Corrosion potential(Ecorr) and corrosion current density(Icorr) could be analyzed from polarization curve. WC-Co-Cr coating showed more incorrodible characteristics than other coatings at solution pH 2. WC-CrC-Ni coating was more favorable anti-corrosion characteristics than other coatings at solution with pH 6.

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References

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