Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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High Temperature Corrosion of Ni-17%W Coatings in Ar-0.2%SO2 Atmosphere

  • Lee, Dong-Bok (School of Advanced Materials Science and Engineering, Sungkyunkwan University) ;
  • Kwon, Sik-Chol (Functional Coatings Group, Korea Institute of Materials Science)
  • Published : 2010.02.28
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Abstract

Coatings of Ni-17 at.%W were electroplated on a steel substrate, and their corrosion behavior was investigated between 600 and $800^{\circ}C$ in an Ar-0.2%$SO_2$ atmosphere. They delayed the corrosion of the steel substrate. They were corroded into an outer NiO-rich layer, and an inner ($WO_3+NiO+NiWO_4$)-mixed oxide layer. Below these oxide layers, a sulfide layer gradually formed.

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References

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