About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2025
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2025
|
| Presentation Title |
1D Experiment for Material Property Applied to Phase Field Model Simulating Pitting Corrosion of Copper Canister |
| Author(s) |
Pilhyeon Ju, Kwanil Chae, Nakkyu Chae, Samuel Park, Richard Ian Foster, Sungyeol Choi |
| On-Site Speaker (Planned) |
Sungyeol Choi |
| Abstract Scope |
To ensure safe disposal of the Spent Nuclear Fuel (SNF), South Korea plans to implement Korean Reference Disposal System (KRS+), which includes copper canister at 500 m below the ground surface. As the canister should endure corrosion – especially the pitting corrosion – in the deep geological environment over 1 million years of its service time, simulation tool is developed in Seoul National University utilizing Phase Field Model. To simulate the pitting corrosion of copper in contact with NaCl solution as electrolyte, kinetic interface parameter L for Allen-Cahn Equation should be determined from experimental data. This study has proceeded electrochemical pitting corrosion with 1D copper wire enclosed by epoxy, immersed in 1 M NaCl solution inside electrolytic cell. The methodology has been validated by comparing the data of SS304 wire with literature data, and obtained current of copper wire as a function of time will be converted into actual value of L.
Acknowledgements: This research was supported by the Institute for Korea Spent Nuclear Fuel (iKSNF) through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2021M2E1A108519422) and Korea Institute of Energy Technology Evaluation and Planning (KETEP) and the Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea (No. 20224000000120). |
| Proceedings Inclusion? |
Undecided |