Figure 5. Comparison of the peak stress variation under 1% of the
fatigue strain range for three cyclic hardening models.
3.3 Creep Strain Model
For the creep constitutive model, the creep strain model for
X10CrMoVNb9-1, equivalent to ASME Grade 91, at 600oC
from RCC-MRx [44] was used, given by