SNF Interim Storage Canister Corrosion and Surface Environment Investigations (FY21 Status Report)

Technical Report · Fri Sep 24 04:00:00 EDT 2021

DOI:https://doi.org/10.2172/1825847· OSTI ID:1825847

Bryan, Charles ^[1]; Knight, Andrew ^[1]; Nation, Brendan ^[1]; Montoya, Timothy ^[1]; Karasz, Erin ^[1]; Katona, Ryan ^[1]; Schaller, Rebecca ^[1]

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1. Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

This progress report describes work performed during FY21 at Sandia National Laboratories (SNL) to assess the localized corrosion performance of canister materials used in the interim storage of spent nuclear fuel (SNF). Of particular concern is stress corrosion cracking (SCC), by which a through-wall crack could potentially form in a canister outer wall over time intervals that are shorter than possible dry storage times. In FY21, modeling and experimental work was performed that further defined our understanding of the potential chemical and physical environment present on canister surfaces at both marine and inland sites. Research also evaluated the relationship between the environment and the rate, extent, and morphology of corrosion, as well as the corrosion processes that occur. Finally, crack growth rate testing under relevant environmental conditions was initiated.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: NA0003525
• OSTI ID: 1825847
• Report Number(s): SAND2021-12903R; 700966
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES