SEM, EDX and XRD studies of the scales formed on the Fe–Mn–Al–C system in oxidizing–sulphidizing environments

Publisher Website
Google Scholar
Abstract
The use of Fe–Mn–Al–C alloys in oxidizing–sulphidizing environments at elevated temperatures is considered. Applications of SEM, EDX mapping and x‐ray diffraction techniques to the microstructural characterization of the scale development on these alloys are reviewed. Combination of the electron microscope and the analytical techniques provides information concerning the morphology, elemental distribution, crystal structure and identification of phases in the scale. This information is of particular importance in the design and development of a corrosion‐resistant alloy. Application of the above techniques is described with examples from oxidation studies in air and corrosion studies in SO2–O2 gas mixtures with different sulphur partial pressures.