한국표면공학회지 (Journal of the Korean institute of surface engineering)

  • 제48권3호
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  • Pages.110-114
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  • 2015
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  • 1225-8024(pISSN)
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  • 2288-8403(eISSN)
한국표면공학회 (The Korean Institute of Surface Engineering)
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Aluminizing and Corrosion of Carbon Steels in N2/0.5%H2S Gas at 650-850℃

  • Abro, Muhammad Ali (School of Advanced Materials Science & Engineering, Sungkyunkwan University) ;
  • Lee, Dong Bok (School of Advanced Materials Science & Engineering, Sungkyunkwan University)
  • 투고 : 2015.06.16
  • 심사 : 2015.06.26
  • 발행 : 2015.06.30
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초록

The effect of hot-dip aluminizing on the corrosion of the low carbon steel was studied at $650-850^{\circ}C$ for 20-50 h in $N_2/0.5%\;H_2S$ gas. The aluminized steel consisted primarily of the Al topcoat and the underlying Al-Fe alloy layer. Aluminizing drastically improved the corrosion resistance by forming the ${\alpha}-Al_2O_3$ surface scale. Without aluminizing, the steel formed nonadherent, fragile, thick scales, which consisted of FeS as the major phase and iron oxides such as FeO, $Fe_3O_4$ and $Fe_2O_3$ as minor ones.

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피인용 문헌

  1. Corrosion of Fe-9%Cr-1%Mo Steel at 600 and 700℃ in N2/(0.5, 2.5)%H2S-mixed Gas vol.49, pp.2, 2016, https://doi.org/10.5695/JKISE.2016.49.2.147
  2. Microstructural Changes of Al Hot-Dipped P91 Steel during High-Temperature Oxidation vol.7, pp.2, 2017, https://doi.org/10.3390/coatings7020031