Boiler application of thermal spray coatings for high-temperature corrosion and erosion protection

摘要

Thermal spray coatings applied to the surface of boiler components such as heat exchanger tubes areeffective for high-temperature corrosion and erosion protection. Thermal spray coatings use reliablespray materials and spray processes tested in the laboratory and actual boilers, and are selected byconsidering the actual boiler environment and substrate materials. Various spray coatings for high-temperature corrosion and/or erosion protection have been put into practical use. This paperdescribes typical thermal coatings for boiler components, test results in the laboratory, and actualplants and introduces various boiler application examples of spray coatings at IHI.