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Deposition of corrosion products under pressurised water nuclear reactor conditions: the effect of flow velocity and dissolved hydrogen

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Abstract

The effect of water flow velocity and dissolved hydrogen on the deposition rate of Corrosion-Related Unidentified Deposit (CRUD) was investigated under conditions relevant to pressurised water nuclear reactors using type 304L stainless steel micro-orifices. The results indicate that the CRUD build-up rate increases with hydrogen concentration because the amount of iron in solution also increases. At the same time, the fluid shear forces induce a mechanical removal of the oxide for flow velocities above 15 m/s. This suggests that the CRUD deposition process occurs under mass transport control, but the overall build-up rate is also affected by flow-induced mechanical removal.
Original languageEnglish
JournalCorrosion Science
DOIs
Publication statusAccepted/In press - 18 Jul 2019

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  • MPC: Materials Performance Centre

    Burke, G. (PI), Engelberg, D. (PI), Preuss, M. (PI), Frankel, P. (PI), Jimenez-Melero, E. (PI), Pickering, E. (PI), Scenini, F. (PI), Stevens, N. (PI), Race, C. (PI), Connolly, B. (PI), Abdallah, M. (PGR student), Armson, S. (PGR student), Attar, H. (PGR student), Barron, P. (PGR student), Bird, J. (PGR student), Brown, A. (PGR student), Bruce, K. (PGR student), Buxton, O. (PGR student), Cassineri, S. (PGR student), Cattivelli, A. (PGR student), Chen, W. (PGR student), Collins, J. (PGR student), Debenham, L. (PGR student), Eaton-Mckay, J. (PGR student), Eguchi, K. (PGR student), Foster, D. (PGR student), Fox, C. (PGR student), Garrett, A. (PGR student), Gredis, A. (PGR student), Grime, T. (PGR student), Hou, J. (PGR student), Howe, B. (PGR student), Hughes, J. (PGR student), Hunt, C. (PGR student), Islam, U. (PGR student), Jalil, R. (PGR student), Jones, C. (PGR student), Kablan, A. (PGR student), Kapousidou, M. (PGR student), Koc, O. (PGR student), Kroll, R. (PGR student), Lang, R. (PGR student), Lennard, J. (PGR student), Liubercev, S. (PGR student), Mahmood, S. (PGR student), Maric, M. (PGR student), Martin, C. (PGR student), Mazzei, G. (PGR student), Rigby-Bell, M. (PGR student), Rogers, M. (PGR student), Sanchez, C. (PGR student), Shah, Z. (PGR student), Stavroulakis, E. (PGR student), Stuglik, P. (PGR student), Suleman, T. (PGR student), Supornpaibul, N. (PGR student), Thornley, S. (PGR student), Volpe, L. (PGR student), Wang, H. (PGR student), Wilson, M. (PGR student), Wilson, A. (PGR student), Woodward, T. (PGR student), Wylie, A. (PGR student), Xu, X. D. (PGR student), Yankova, M. (PGR student), Yildirim, E. (PGR student), Zhou, Y. (PGR student), Zhu, S. (PGR student), Barzdajn, B. (CoI), Carruthers, A. (CoI), Cassineri, S. (CoI), Chang, L. (CoI), Obasi, G. (CoI), Palko, S. (CoI), Reccagni, P. (CoI), Tang, R. (CoI), Thomas, R. (CoI), Unnikrishnan, R. (CoI), Zhang, Z. (CoI), Zhou, Y. (CoI) & Aspinall, A. (Support team)

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