Investigation of Cold Spray as a Dry Storage Canister Repair and Mitigation Tool

Technical Report · Wed Sep 30 04:00:00 EDT 2020

DOI:https://doi.org/10.2172/1765140· OSTI ID:1765140

Ross, Kenneth A. ^[1]; Jiang, Xiujuan Hellen ^[1]; Alabi, Morotolaoluwa ^[1]; Enderlin, Carl W. ^[1]

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1. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

The lack of a permanent spent nuclear fuel repository means utilities are faced with extending licenses for dry cask storage systems (DCSS) canisters far beyond their original 20-year license period. DCSS canisters are made from austenitic stainless steels (SSs) and fabricated using fusion welds. High heat input and melting associated with fabrication welds causes material around the weld to be susceptible to chloride-induced stress corrosion cracking (CISCC). The purpose of the work reported here is to investigate the use of cold spray for repair and mitigation of CISCC in DCSS canisters to ensure integrity far beyond their original license period. This report presents an analysis of cold spray for canister life extension, a summary of related efforts, relevant technology down selections, work accomplished, and future efforts relative to use of cold spray for repair and mitigation of CISCC in DCSS canisters.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1765140
• Report Number(s): PNNL--30484
• Country of Publication: United States
• Language: English

Related Subjects

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CISCC
Stress corrosion cracking
cold spray