About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
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Synergistic Irradiation, Corrosion, and Microstructural Evolution in Nuclear Materials
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Presentation Title |
Characterizing Commercial Alloys Undergoing Simultaneous Molten Salt Corrosion and Proton Irradiation |
Author(s) |
Nouf Almousa, Weiyue Zhou, Kevin Woller, Micheal Short |
On-Site Speaker (Planned) |
Nouf Almousa |
Abstract Scope |
The synergetic effects of irradiation and corrosion of commercial alloys in high-temperature molten fluoride salt are investigated. Using a simultaneous corrosion-irradiation facility [1], a FLiNaK molten salt in a pure nickel corrosion cell is exposed to a proton beam through a 25m foil sample. Cross-section of each foil were specifically prepared using dry ion polishing to preserve salt-filled features and characterized. In order to evaluate the effects of irradiation on corrosion, assessments of the corrosion depth and corrosion acceleration factor have been undertaken. The net corrosion effect is determined by competing, simultaneous processes of acceleration via salt chemistry and deceleration from radiation enhanced diffusion, found to be greatly dependent on alloying elements and associated self-healing. Based on the quantitative corrosion metrics, the impact of the proton beam on the molten salt corrosivity can be summarized in one sentence: Irradiation makes good alloys better and bad alloys worse. |
Proceedings Inclusion? |
Planned: |
Keywords |
Nuclear Materials, Other, Other |