Abstract
The attack of nickel, cobalt, iron, and alloys of these metals containing chromium and aluminum, by gases containing sulfur-oxygen, carbon-oxygen, and nitrogen-oxygen has been studied at temperatures of 600 and 900°C. The degradation of these metals and alloys was characterized by using standard analytical techniques with emphasis on optical metallography. Three types of accelerated degradation were identified for the attack of alloys by gases containing another oxidant in addition to oxygen. One type of degradation occurred because of the formation of reaction products composed of mixtures of phases involving both of the oxidants. Another type resulted from the reaction of second oxidant phases with oxygen. The third form of degradation involved the development of less protective phases due to thermodynamic instabilities. Thermodynamic stability diagrams are used to help account for the effects produced by different elements in the alloys.
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References
P. L. Hemmings and R. A. Perkins, “Thermodynamic Phase Stability Diagrams for the Analysis of Corrosion Reactions in Coal Gasification/Combustion Atmospheres,” FP-539, Research Project 716-1, Interim Report, December 1977, prepared by Lockheed Palo Alto Research Laboratories for Electric Power Research Institute, Palo Alto, California.
J. F. Lancaster,Int. Met. Rev. 3, 101 (1978).
F. S. Pettit, C. S. Giggins, J. A. Goebel, and E. J. Felten, “Oxidation and Hot Corrosion Resistance,” inAlloy and Microstructural Design, J. K. Tien and G. S. Ansell, eds. (Academic Press, New York, 1976), Chap. X.
F. S. Pettit, J. A. Goebel, and G. W. Goward,Corros. Sci. 9, 903 (1969).
M. Danielewski and K. Natesan, “Oxidation-Sulfidation Behavior of Iron-Chromium-Nickel Alloys,”Oxid. Met. 12, 227 (1978).
J. S. Kirkaldy, G. M. Dolze, D. McCutcheon, and O. J. Young,Metall. Trans. 4, 1519 (1973).
K. L. Luthra and W. L. Worrell,Metall. Trans. 9A, 1055 (1978).
K. L. Luthra and W. L. Worrell,Metall. Trans. 10A, 621 (1979).
P. S. Singh and N. Birks,Oxid. Met. 12, 23 (1978).
T. Flatley and N. Birks,J. Iron Steel Inst. 209, 523 (1971).
M. R. Wootton and N. Birks,Corros. Sci. 12, 829 (1972).
A. Rahmel,Corros. Sci. 13, 125 (1973).
I. Kvernes, M. Oliveira, and P. Kofstad,Corros. Sci. 17, 237 (1977).
C. B. Alcock, M. G. Hocking, and S. Zador,Corros. Sci. 9, 111 (1969).
C. S. Tedmon, Jr., and A. U. Seybolt,Corros. Sci. 8, 125 (1968).
J. A. Goebel and F. S. Pettit,Metall. Trans. 1, 3421 (1970).
R. A. Perkins, “High Temperature Corrosion of Metals and Alloys in Coal Conversion Atmospheres,” DOE, EPRI, GRI, NBS, Third Annual Conference on Materials for Coal Conversion and Utilization, October 10–12, 1978, published by the Department of Energy, pp. K-231–K-265.
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Giggins, C.S., Pettit, F.S. Corrosion of metals and alloys in mixed gas environments at elevated temperatures. Oxid Met 14, 363–413 (1980). https://doi.org/10.1007/BF00603609
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DOI: https://doi.org/10.1007/BF00603609