Assessment of Cold Spray Technology for Nuclear Power Applications

Ross, Kenneth A.; Lareau, J. P.; Glass, S. W.; Meyer, Ryan M.

doi:10.2172/1828579

Cited by 2 publications

(2 citation statements)

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“…These tests also allowed insight into the factors influencing corrosion behavior of cold sprayed coatings. The nature of the corrosion damage also highlights the need for techniques that can evaluate the effectiveness of the coating in the field after deployment (Ross et al, 2021;Xia et al, 2022).…”

Section: Discussionmentioning

confidence: 99%

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Accelerated corrosion testing of cold spray coatings on 304L in chloride environments

Karasz¹,

Montoya²,

Taylor³

et al. 2022

Front. Met. Alloy

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Cold spray is an advanced metal manufacturing technique applied across many fields for a wide range of functions. Low heat input and compressive stresses induced into the substrate by the cold spray process makes it a promising choice for protective corrosion resistant coatings. One potential application for cold spray is as a protective coating against corrosion for spent nuclear fuel (SNF) interim dry storage canisters. As these canisters are currently stored at interim storage locations longer than originally intended, chloride induced stress corrosion cracking has been identified as a high priority knowledge gap, specifically with respect to prolonging or extending canister lifetimes (Teague et al., 2019). The high deployability of cold spray, for which nozzles have been developed for application in constrained spaces, in conjunction with beneficial properties inherent to cold spray makes this a good candidate for a corrosion protection coating on SNF canisters. This work explores a pathway to rapidly down-select cold spray coatings for canisters by focusing on the corrosion properties. Specifically, this study examines the corrosion protection abilities of nickel and nickel-based alloy cold spray coatings on 304 L stainless steel in chloride rich environments through electrochemical scans and ferric chloride pitting tests (ASTM G48 Method A). It was shown that the porosity of the coating, the processing gas, material selection, and deformation in the substrate all impact the corrosion behavior of cold spray coatings and are areas where optimization could reduce potential materials degradation, enabling enhanced coatings development.

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Section: Discussionmentioning

confidence: 99%

“…Cold spray coatings presented in this work were fabricated using parameters and equipment described in Table 2. Cold spray parameters were chosen based on previous optimizations (Jiang et al, 2020;Ross et al, 2021). Both nitrogen and helium carrier gasses were employed for comparison.…”

Section: Methodsmentioning

confidence: 99%