Abstract
Boiling water nuclear reactors (BWRs) throughout the world have applied the NobleChem™ (or noble metal chemical addition: NMCA) or Online NMCA (OLNC) process just before end-of-cycle shutdown or during an operation to mitigate the stress corrosion cracking (SCC) of structural materials in BWRs. When injected into BWR environments, the noble metal particles deposit on Type 304 stainless steel surfaces and reduce the corrosion potential, which decreases the propensity for SCC. Very fine noble metal particles are formed and able to potentially deposit inside a crack and maintain catalytic surfaces in the critical regions inside the crack. However, the current NMCA or OLNC process also introduces the unnecessary ionic species to the reactor water.
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© 2011 TMS (The Minerals, Metals & Materials Society)
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Kim, YJ., Andresen, P.L., Hettiarachchi, S. (2011). Use of Noble Metal Nanopartice for SCC Mitigation in BWRs. In: Busby, J.T., Ilevbare, G., Andresen, P.L. (eds) Proceedings of the 15th International Conference on Environmental Degradation of Materials in Nuclear Power Systems — Water Reactors. Springer, Cham. https://doi.org/10.1007/978-3-319-48760-1_119
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DOI: https://doi.org/10.1007/978-3-319-48760-1_119
Publisher Name: Springer, Cham
Online ISBN: 978-3-319-48760-1
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