High-temperature corrosion

High-temperature corrosion or dry-corrosion occurs in the absence of liquid electrolyte when metal react directly with gaseous atoms in the atmosphere rather than ions in solution. The properties of high-temperature oxide films determine the oxidation resistance of a metal or alloy in a specific environment. High-temperature corrosion occurs in industries such as refining and petrochemical, power generation, aerospace and gas turbine, heat treating, chemical processing, and pulp ad paper. High-temperature corrosion occurs due to thermodynamics that determine a corrosive reaction and the rate of reaction. The rate of corrosion is reduced by a careful selection of alloying components, such as inclusion of multi-valent metal that can react with a greater number of oxidizing atoms.