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Abstract Effect of pre-oxidation treatment on oxidation resistance in steam at 650 °C has been investigated for 9 mass% chromium (Cr) steel for advanced ultra-supercritical power plants. The formation of thin… Click to show full abstract
Abstract Effect of pre-oxidation treatment on oxidation resistance in steam at 650 °C has been investigated for 9 mass% chromium (Cr) steel for advanced ultra-supercritical power plants. The formation of thin scale of Cr 2 O 3 -rich oxides is achieved by pre-oxidation in argon gas containing 0.3 ppm oxygen, which significantly improves the oxidation resistance of the steel in steam at 650 °C for a long time exceeding 20,000 h. Effects of pre-oxidation conditions, such as oxygen concentration in argon gas and pre-oxidation temperature and time, and of silicon concentration in the steel on the oxidation resistance in stream are systematically investigated.
Journal Title: Corrosion Science
Year Published: 2017
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