Abstract
The attack of cobalt by sulfur and oygen simultaneously in Ar-SO2 atmospheres in the temperature range 500–900°C has been found to conform to the pattern established by the attack of other metals under similar conditions. A thermodynamic and kinetic interpretation of the mechanism has been proposed. The results also indicate that during the initial stages sulfur diffuses through the initially formed oxide layer, eventually leading to formation of the commonly observed duplex sulfide and oxide scale.
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Singh, P., Birks, N. Reaction of cobalt in Ar-SO2 atmospheres at 500–900°C. Oxid Met 12, 23–34 (1978). https://doi.org/10.1007/BF00609973
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DOI: https://doi.org/10.1007/BF00609973