Research Progress on Evolution Law and Strengthening Mechanism of Precipitated Phases in Ferritic Heat-Resistant Steel for High-parameter Coal-Fired Units

Ferrite heat-resistant steel has the advantages of low cost, easy processing, low thermal expansion etc, so it has been widely used in existing coal-fired generating units.The research status of strengthing mechanism and precipitation phase of ferritic heat-resistant steel for key components of supercritical and ultra-supercritical coal-fired generating units in China and abroad was summarized, and the application of new precipitated phases in ferritic heat-resistant steel was investigated.