Abstract
In laboratory erosion-corrosion (E-C) and corrosion experiments it was determined that calcium sulfate which occurs in FBC bed materials from the reaction of calcined limestone with the sulfur in the coal fuel can either protect the base metal against erosion-corrosion by aiding the formation of mixed calcium compound-iron oxide layers on the surface or promote its sulfidation, depending on the calcium sulfate content of the erodent particles and the test temperature, particle velocity, and duration. The reaction between calcium sulfate particles and metal substrates formed iron sulfide under certain test conditions.
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1991
Association for Materials Protection and Performance (AMPP)
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