About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Materials and Chemistry for Molten Salt Systems
|
Presentation Title |
Electrochemical Studies of Structural Alloy Corrosion in LiF-NaF-KF (FLiNaK) at 700 ˚C |
Author(s) |
William Doniger, Adrien Couet, Kumar Sridharan |
On-Site Speaker (Planned) |
William Doniger |
Abstract Scope |
The potentiodynamic polarization method has been used to measure the corrosion behavior of metals and alloys in FLiNaK salt at 700 ˚C. Ni, Fe, Cr, 316L stainless steel, and Ni-20Cr alloys are polarized to different overpotentials to induce varying degrees of corrosion attack. Results indicate the materials have i) characteristic equilibrium potentials with respect to the K/K+ redox couple and ii) unique corrosion currents and Tafel slopes that describe their corrosion behavior. The polarized electrodes have been characterized in detail using SEM-EDS, profilometry, and atomic force microscopy. A combination of electrochemical data and characterization results of the polarized electrodes provides a promising basis for evaluating new advanced alloy concepts. |
Proceedings Inclusion? |
Planned: |
Keywords |
Environmental Effects, Nuclear Materials, Other |