Calcium Sulfate, Mixed Sulfate, and Mixed Oxide Corrosion of FeCrAlY Alloy in Dry Air at 1025 ºC

Backscattered electron micrographs provide information about the thickness of the thermally grown oxide (TGO) thickness and the alloy-TGO interface roughness caused by oxidation of FeCrAlY alloy for 100 h at 1025 ºC in dry air upon exposure to corrosive deposits comprising mixed oxides, mixed sulfates, or calcium sulfate. Micrographs were processed to provide tabulated values for TGO thickness as a function of location across the sample cross section, and changes in the TGO-alloy interface position. The purpose of release is to provide access to detailed data related to alloy hot corrosion process. It is released now to correspond with the publication of the analyzed results in a related paper.