Characterizing microstructural evolution and low cycle fatigue behavior of 316H austenitic steel at high-temperatures

This study investigates the relationship between the microstructural evolution and low cycle fatigue behavior of 316H austenitic steel to understand its performance at 550°C in generation-IV nuclear power plants. The 316H steel exhibited non-Masing behavior, where the cyclic hardening behavior followed by cyclic softening behavior was presented. The increased strain amplitude led to a higher degree of cyclic softening, which was related to the...