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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)
  • Received : 2015.06.16
  • Accepted : 2015.06.26
  • Published : 2015.06.30

Abstract

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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References

  1. Y. N. Chang, F. I. Wei, J. Mater. Sci. 24 (1989) 14. https://doi.org/10.1007/BF00660927
  2. B. Schmid, N. Aas, Q. Grong, R. Qdegard, Oxid. Met. 57 (2002) 116.
  3. L. L. Shreir, R. A. Jarman, G. T. Burstein, Corrosion Control, 3rd ed, Vol. 2, Butterworth-Heinemann, UK. (1994) 13.
  4. C. J. Wang, S. M. Chen, Surf. Coat. Technol. 200 (2006) 6601. https://doi.org/10.1016/j.surfcoat.2005.11.031
  5. G. H. Awan, F. Ul. Hasan, Mater. Sci. Eng. A, 472 (2008) 157. https://doi.org/10.1016/j.msea.2007.03.013
  6. S. Kwon, J. Lee, Can. Metall. Quart. 20 (1981) 351. https://doi.org/10.1179/cmq.1981.20.3.351
  7. K. Bouche, F. Barbier, A. Coulet, Mater. Sci. Eng. A, 249 (1998) 167. https://doi.org/10.1016/S0921-5093(98)00573-5
  8. N. A. El. Mahallawy, M. A. Taha, M. A. Shady, A. R. El. Sissi, A. N. Attia, W. Reif, Mater. Sci. Technol. 13 (1997) 832. https://doi.org/10.1179/mst.1997.13.10.832
  9. W. Deqing, Appl. Surf. Sci. 254 (2008) 3026. https://doi.org/10.1016/j.apsusc.2007.10.059
  10. H. Glasbrenner, K. Stein-Fechner, J. Konys, J. Nucl. Mater. 283 (2000) 1302.
  11. W. J. Cheng, C. J. Wang, Surf. Coat. Technol. 204 (2009) 824. https://doi.org/10.1016/j.surfcoat.2009.09.061
  12. T. Maitra, S. Gupta, Mater. Charact. 49.4 (2002) 293. https://doi.org/10.1016/S1044-5803(03)00005-6

Cited by

  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