Corrosion characteristics of hydrogen permeation materials in molten salt flinak

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Abstract

Corrosion characteristics of hydrogen-permeation materials (e.g., Pd-Ag, pure V, Nb, and Ta) are examined in molten salt Flinak, in order to develop a hydrogen-recovery section for a Flinak forced convection loop "Operational Recovery of Separated Hydrogen and Heat Inquiry -1 (Orosh 2i-1)." It is determined that their corrosion rate is not significant at 873K under static conditions, compared with that of JLF-1 ferritic steel. However, pure V indicates a relatively high weight gain, likely due to O absorption. Dissolution of highly radioactive elements (e.g., Ag and Nb) is also indicated. The corrosion mechanisms and characteristics of the constituent elements are analyzed. © 2011 The Japan Society of Plasma Science and Nuclear Fusion Research.

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Nagasaka, T., Kondo, M., Sagara, A., & Muroga, T. (2011). Corrosion characteristics of hydrogen permeation materials in molten salt flinak. Plasma and Fusion Research, 6(2011). https://doi.org/10.1585/pfr.6.1405146

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