Abstract
The metal wastage caused by the impact of small solid particles on surfaces that are simultaneously corroded at elevated temperatures is a problem in several types of energy systems. Protective coatings are used on components in chemical process plants and boilers to protect the surfaces of steel alloys from corrosion, erosion and abrasion, or a combination of these. An investigation of the erosion-corrosion behavior of combined chromized-aluminized coatings on stainless steel 304SS and 410SS was carried out at room and elevated temperature conditions. The coated steels had lower metal loss rates than the bare metal. Different microstructures of the same basic coating material had different erosion-corrosion behavior. Erodent particles that were embedded in the eroded surfaces of the coatings could have influenced their erosion-corrosion behavior.
Published Version
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