Determination of the creep compliance and creep-swelling coupling coefficient for neutron irradiated titanium-modified stainless steels at ∼ 400°C
Irradiation creep data from FFTF/MOTA at ∼400°C were analyzed for PCA and eight other 20% cold-worked titanium-modified type 316 stainless, each of which exhibits a different transient regime of swelling. The analysis was based on the assumption that the B0 + DS creep model applies. A creep-swelling coupling coefficient of D ≅ 0.6 × 10-2 MPa-1 was found for all steels that had developed a significant level of swelling. This is in agreement with the results of earlier studies conducted in EBR-II on other stainless steels.