Abstract
Two austeno-ferritic stainless steels were sulfidized at temperatures of 783, 873, and 963 K under sulfur pressures in the range 4×10−12 to 3×10−5 atm. In all cases a triplex scale developed, consisting of an outermost layer of (Fe, Cr)1−xS, an intermediate layer of FeCr2S4, and an innermost layer of porous (Cr, Fe)1−xS containing particles of Mo2S3. Parabolic kinetics were observed except at the lowest temperature where one of the steels reacted according to irregular kinetics. The Mo2S3 particles in the innermost layer acted as inert markers, imaging the former positions of the steels' ferrite phase in which Mo is enriched. The lamellar microstructure of the steel was thus reproduced in the innermost sulfide layer. The positions of the Mo2S3 particles together with the porosity of the inner layer are taken to imply inward sulfur transport through this layer and outward metal transport through all three layers.
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References
K. N. Strafford and A. F. Hampton,J. Less-Common Met. 21, 305 (1970).
D. J. Young, W. W. Smeltzer and J. S. Kirkaldy,Met. Trans. 6A, 1205 (1975).
M. Danielewski and K. Natesan,Oxid. Met. 12, 227 (1978).
D. J. Young,Rev. High Temp. Mat. 4, 299 (1980).
J. Podhorodecki, J. Stelman, and M. Wedrychowska,Rev. Int. Hautes Temp. Refract. 14, 161 (1977).
D. B. Rao and H. G. Nelson, inProperties of High Temperature Alloys, Z. A. Foroulis and F. S. Pettit, eds. (The Electrochemical Society, Princeton, N.J., 1976, p. 464.
D. B. Rao and H. G. Nelson,Oxid. Met. 12, 111 (1978).
K. Natesan and O. K. Chopra, in Ref. 6, p. 493.
S. Mrowec, T. Walec, and T. Werber,Oxid. Met. 1, 93 (1969).
T. Narita and K. Nishida,Oxid. Met. 6, 157 (1973).
P. D. Zelanko and G. Simkovich,Oxid. Met. 8, 343 (1974).
W. W. Smeltzer, T. Narita, and K. Prgnybylski, inCorrosion-Erosion-Wear of Materials in Emerging Fossil Energy Systems, A. V. Leyy, ed. (N.A.C.E., Houston, 1982), p. 860.
T. Narita, W. W. Smeltzer, and K. Nishida,Oxid. Met. 17, 299 (1982).
T. Werber, T. Biegun, Z. Skrzypek, and J. Podhoracki,Rocz. Chem. 44, 915 (1970).
Z. Skrzypek and T. Werber,Arch. Hutn. 21, 115 (1976).
T. Narita and K. Nishida,Denki Kagaku 43, 443 (1975).
D. J. Young, C. L. Tasker, and J. P. Orchard, inProc. Int. Symp. High Temperature Corrosion of Metals and Alloys (Japan Inst. Met., 1983), p. 491.
A. El Goresy and G. Kullerud, inMeteorite Research, P. M. Millman, ed. (Reidel, Dordrecht, Holland, 1969), p. 638.
D. J. Young, W. W. Smeltzer, and J. S. Kirkaldy,J. Electrochem. Soc. 120, 1221 (1973).
H. Rau,J. Less-Common Met. 55, 205 (1977).
K. T. Jacob, D. B. Rao, and H. G. Nelson,Oxid. Met. 13, 25 (1979).
J. S. Kirkaldy, G. M. Bolze, D. McCutcheon, and D. J. Young,Met. Trans. 4, 1519 (1973).
R. W. Shewman and L. A. Clark,Can. J. Earth Sci. 7, 67 (1970).
Metals Handbook, 8th ed., Vol. 8 (A.S.M., Metals Park, Ohio, 1973).
H. Rau,J. Phys. Chem. Solids 41, 765 (1980).
T. Rosenqvist,J. Iron Steel Inst. 176, 37 (1954).
A. Dravnieks and H. McDonald,J. Electrochem. Soc. 94, 139 (1949).
R. A. Meussner and C. E. Birchenall,Corrosion 13, 677t (1957).
S. Mrowec,Corr. Sci. 7, 563 (1967).
S. Mrowec, inHigh Temperature Metallic Corrosion of Sulfur and its Compounds, Z. A. Foroulis, ed. (The Electrochemical Society, Princeton, N.J., 1970), p. 55.
C. Wagner, inAtom Movements (A.S.M., Cleveland, 1951), p. 153.
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Mallia, L.V., Young, D.J. Sulfidation behavior of austeno-ferritic steels. Oxid Met 21, 103–118 (1984). https://doi.org/10.1007/BF00741466
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DOI: https://doi.org/10.1007/BF00741466