SIMULATING THE SUSCEPTIBILITY TO IGSCC OF COLD WORK 316 AUSTENITIC STAINLESS STEEL EXPOSED TO PRIMARY WATER

摘要

A local model was proposed in the past to better predict the susceptibility to IGSCC of alloys 600 and 182. More recently such an approach was used to simulate EDF operational experience observed on primary pumps A286 studs. The current paper extends the calibration of the local model to 316 stainless steels exposed to primary water. First, the experimental procedure and the resulting model are detailed. Second, the model is coupled with digital tools (Code_Aster and Code_Coriolis) to predict SCC kinetics of laboratory specimens. Finally, simulations are performed at the scale of components.