Hot Corrosion Behavior and Protection of 430 Ferritic Stainless Steel in Nitrate Salts at 650 ℃

Key Points

• Hot corrosion of 430 ferritic stainless steel significantly increases in nitrate salts at 650 ℃ with detrimental effects.
• Oxidation kinetics of the steel show a marked increase in corrosion rate when exposed to these salts over time.
• Analysis of thermal degradation highlights critical challenges for material performance at elevated temperatures and corrosive environments.
• Understanding these corrosion processes may guide future material selection for high-temperature applications.