Abstract
The use of silicon in Fe‐18% Cr alloys was investigated to determine whether the poor sulfidation resistance of 18% Cr iron‐base alloys for use in reducing coal gasification system atmospheres could be improved. It was determined that up to 2% Si did not produce an layer, but rather occurred in isolated areas in the corrosion scale and internally in the base metal. The 18% Cr also did not produce a continuous protective scale, permitting rapid corrosion to occur within 100 hr of exposure to , gases at 982°C.
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