Nimonic-75 has been reacted in low partial pressures of CO2, H2O, CO, CH4, N2, and various mixtures of these gases at temperatures in the range 750–1000°. Ten different steels have been studied in a fivecomponent gas mixture at temperatures between 500–750° and in a number of (CO + H2+ H2O) mixtures at 500° and 600°. No gross effects have been found on any of the materials tested under the various conditions of exposure, and the most significant phenomena in environments of practical importance are decarburisation and/or preferential oxidation of certain alloy constituents.
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References
1.
EverettM. R., ‘Kinetics of Carbon Deposition Reactions in High Temperature and Gas Cooled Reactors’, Br. Corros. J., 1967, 2, 231(Summary only)
2.
WarzeeM., SonnenC., HennautJ., & RustonW R.., ‘Study of Catalytic Decomposition of CO on Pure Iron, Mild Steel and Alloyed Steels’, Br. Corros. J., 1967, 2, 231(Summary only)
