Hot Gas Corrosion Inhibition
Hot gas corrosion inhibition prevents the buildup of corrosion damage at high temperatures through special additives or protective coatings.
Physical-Chemical Mechanism
Hot gas corrosion occurs when aggressive ash components in combustion gases react with metal surfaces. Specific additives neutralize these chemical reactions, preventing the formation of low-melting eutectics that trigger corrosion.
Metallurgical Relevance & Welding Risks
At high temperatures, hot gas corrosion can lead to cracking, deformation, and susceptibility to damage. Inadequate inhibition can significantly shorten component lifespan.
Workshop Practice & Action Items
Use special additives or protective coatings in combustion gases to prevent hot gas corrosion. Regularly check the concentration of additives and adjust as needed. If corrosion is suspected, perform a detailed surface inspection.