About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-37: Enhancement of Corrosion Resistance of Cu-Alloyed Low-Carbon Steels in Seawater Via Cerium-Stabilized Oxide Layers |
| Author(s) |
Hyeonseok Cho, Kyoungdoc Kim |
| On-Site Speaker (Planned) |
Hyeonseok Cho |
| Abstract Scope |
Steels used in marine environments require enhanced corrosion resistance due to chloride-rich seawater that accelerates electrochemical reactions and promotes localized corrosion. To mitigate this issue, Alloy composition modification using rare earth elements has gained increasing attention. Herein, CALPHAD modeling is employed to identify rare earth elements capable of stabilizing oxide layers, and surface acid treatments are applied to accelerate their formation and stabilization. Consequently, the oxide layer formed on Ce-containing steel was thinner and more compact than that on Ce-free steel. Oxide layer stability was assessed using potentiodynamic polarization in 3.5 wt.% NaCl solution. The 0.0143 wt.% Ce steel showed a 34 ± 3% reduction in corrosion current density (Icorr), indicating enhanced corrosion resistance. These findings demonstrate that Ce facilitates the formation of protective oxide layers by increasing the relative fractions of FeOOH and Fe2O3 phases. This integrated modeling–experimental approach offers a strategy for designing corrosion-resistant steels. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Other, |