Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Corrosion of Fe-2%Mn-0.5%Si Steels at 600-800℃ in N2/H2O/H2S Atmospheres

  • Kim, Min-Jung (School of Advanced Materials Science and Engineering, Sungkyunkwan University) ;
  • Park, Sang-Hwan (Functional Materials Center, KIST) ;
  • Lee, Dong-Bok (School of Advanced Materials Science and Engineering, Sungkyunkwan University)
  • Received : 2011.09.19
  • Accepted : 2011.10.28
  • Published : 2011.10.31
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Abstract

Fe-2%Mn-0.5%Si alloys were corroded at 600, 700 and $800^{\circ}C$ for up to 70 h in 1 atm of $N_2$ gas, or 1 atm of $N_2/H_2O$-mixed gases, or 1 atm of $N_2/H_2O/H_2S$-mixed gases. Oxidation prevailed in $N_2$ and $N_2/H_2O$ gases, whereas sulfidation dominated in $N_2/H_2O/H_2S$ gases. The oxidation/sulfidation rates increased in the order of $N_2$ gas, $N_2/H_2O$ gases, and, much more seriously, $N_2/H_2O/H_2S$ gases. The base element of Fe oxidized to $Fe_2O_3$ and $Fe_3O_4$ in $N_2$ and $N_2/H_2O$ gases, whereas it sulfidized to FeS in $N_2/H_2O/H_2S$ gases. The oxides or sulfides of Mn or Si were not detected from the XRD analyses, owing to their small amount or dissolution in FeS. Since FeS was present throughout the whole scale, the alloys were nonprotective in $N_2/H_2O/H_2S$ gases.

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References

  1. N. Birks, G. H. Meier, Introduction to High Temperature Oxidation of Metals, Cambridge University Press, UK, 2 (2006) 183.
  2. D. J. Young, High Temperature Oxidation and Corrosion of Metals, (2008) 455.
  3. J. Shen, L. Zhou, T. Li, Oxid. Met., 48 (1997) 347. https://doi.org/10.1007/BF01670507
  4. F. Lang, Z. Yu, S. Gedevanishvili, Intermetallics, 12 (2004) 469. https://doi.org/10.1016/j.intermet.2004.01.010
  5. R. E. Lobning, H. J. Grabke, Corros. Sci., 30 (1990) 1045. https://doi.org/10.1016/0010-938X(90)90211-M
  6. J. C. Dobson, F. R. McLarnon, E. J. Cairns, Corros. Sci., 28 (1988) 953. https://doi.org/10.1016/0010-938X(88)90014-5
  7. S. Mrowec, K. Przybylski, Oxid. Met., 23 (1985) 107. https://doi.org/10.1007/BF00659899
  8. S. Mrowec, T. Walec, T. Werber, Oxid. Met., 1 (1969) 93. https://doi.org/10.1007/BF00609926
  9. S. Mrowec, M. Wedrychowska, Oxid. Met., 13 (1979) 481. https://doi.org/10.1007/BF00812774
  10. M. Danielewski, S. Mrowec, A. Stol/osa, Oxid. Met., 17 (1982) 77. https://doi.org/10.1007/BF00606194
  11. R. John, Shreir's Corrosion, Elsevier, UK 1 (2010) 240.
  12. P. Kofstad, Oxid. Met., 44 (1995) 3. https://doi.org/10.1007/BF01046721
  13. S. Mrowec, Oxid. Met., 1 (1995) 177.
  14. M. Schulte, A. Rahmel, M. Schutze, Oxid. Met., 49 (1998) 33. https://doi.org/10.1023/A:1018818021754