Gas Turbine Hot Corrosion: Causes, Effects, and Preventive Measures

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Hot corrosion is a source of nonrecoverable degradation in gas turbines. It is a chemical reaction among salts, sulfur, and heat, where the damages can reduce an engine’s life by up to 75%. One of the most effective methods is to eliminate the contaminants triggering the chemical reaction. This paper examines the causes of hot corrosion and assesses various methods of mitigation.