About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Solid-State Processing and Manufacturing for Nuclear Applications: Integrating Insights and Innovations
|
| Presentation Title |
Investigation of Cold Spray Ni-Coatings for Stainless Steel Canisters in Dry Cask Storage Systems |
| Author(s) |
Carson Lee Lukas, Evan Willing, Katsuri Sasidhar, Hwasung Yeom, Mychailo Toloczko, Kumar Sridharan |
| On-Site Speaker (Planned) |
Carson Lee Lukas |
| Abstract Scope |
Corrosion and chloride-induced stress corrosion cracking (CISCC) of Ni cold spray coatings (CS-Ni) on 304 austenitic stainless steel and hybrid treatments involving peening of CS-Ni have been investigated for stainless steel canisters used in storing spent nuclear fuel (SNF) dry cask storage systems (DCSS). Corrosion performance was investigated by potentiodynamic polarization in 3.5% NaCl solution and by immersion in 6% FeCl3 solution, followed by detailed characterization. The CS-Ni coating was mildly anodic or cathodic compared to unsensitized and sensitized stainless steel, respectively. Overall, the coating was effective in mitigating corrosion of sensitized stainless steel which typifies the microstructure of the weld regions of the canisters. CISCC testing in prototypical 95% saturated MgCl2 solution at 40oC in conjunction with direct current potential drop (DCPD) method was used for in situ monitoring of crack growth showed the Ni cold spray coatings to be remarkably effective in mitigating CISCC. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Nuclear Materials, Surface Modification and Coatings, Process Technology |