CX-020788: Development and Experimental Validation of Pitting and SCC Models for Welded Stainless Steel Dry Storage Containers – University of Virginia and Sandia National Laboratory

The University of Virginia, in collaboration with Sandia National Laboratory, proposes to develop and test a model for predicting the effects of coupled localized corrosion and stress-corrosion cracking (SCC) on the lifespan of welded stainless steel dry storage canisters (DSCs) under expected repository condition. The tasks associated with this project are (1) Define plausible extremes for corrosion scenarios; (2) Extend maximum pit size model to DSC-relevant conditions; (3) Generate da/dt vs. K relationships in DSC relevant conditions; (4) Develop and evaluate prognosis approaches; and (5) Validate models. Existing testing equipment will be used.