Review of Creep-Thermomechanical Fatigue Behavior of Austenitic Stainless Steel

Research on the creep-thermomechanical fatigue (CTMF) behaviors of austenitic stainless steel for nuclear power plant pipelines is reviewed in present paper. The stress response behavior, main damage mechanisms, including thermomechanical fatigue, creep, oxidation, and dynamic strain aging (DSA), as well effects dwell type, time, temperature-strain phase angle life behavior under CTMF loading conditions are systematically discussed, coupled various mechanisms revealed. It emphasized that closer to actual service condition pipes. pointed out traditional method design based isothermal test data not conservative. Finally, research summarized prospected.