Action Completion
Actions on Track
Completed Actions
Overall Resolution Of Key Issues
Resolution On Track
Issues Resolved
Key Issue: Materials Behavior
A complete understanding of the behavior of materials selected during the design under relevant conditions might not be available during the design phase. Because some advanced reactor designs are intended to operate at much higher temperatures than the currently operating LWRs, design practices need to account for the “time-dependent” behavior of materials in various coolants for safety and life-cycle analyses. To fill this gap, the materials roadmap developed by EPRI should be updated, vendors’ needs should be collected and prioritized, and the needed tests should be performed with a timeline that meets advanced reactor designers’ needs.
Priority
1
Status
On Track
Capture material data and close data gaps necessary for deployment of advanced reactors: Identify the materials needed for advanced reactor designers in both the near- and mid-term and ensure that materials testing is performed for on-time qualification. The materials roadmap developed by EPRI should be updated, vendors’ needs should be collected and prioritized, and the needed tests should be performed with a timeline that meets advanced reactor designers’ needs.
Action Owner : EPRI,CNA, AR vendors
Need Date:
2028 for first mover
2030 – 2035 for mid-term needs