About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Multiple Principal Component Materials
|
| Presentation Title |
Study on a Synergetic Effect of Multiple Elements on the Passivation Behavior of Alx(FeNiVTi)100-x alloys |
| Author(s) |
Jia Chen, Xinyang Lan, Wenlan Lu, Jun Shen |
| On-Site Speaker (Planned) |
Jia Chen |
| Abstract Scope |
The passivation mechanism of high-entropy alloys has been extensively studied due to the synergistic effect of multiple elements during the passivation process. The effect of Al addition on the passivation behavior of Alx(FeNiVTi)100-x alloys was investigated by combining with experiments and density functional theory. Higher Al concentration can improve the corrosion resistance of Alx(FeNiVTi)100-x alloys in neutral NaCl solution. TEM analysis shows that unexpected Ni-enrich subsurface was found underneath the passive film of FeNiVTi alloys, while Al addition could promote the passivation of Alx(FeNiVTi)100-x alloys by hindering Ni enrichment between the passive film and the substrate. Density functional theory calculations show that Al addition can reduce the electron work function in FeNiVTi alloys system, indicating a fast oxidation tendency of Alx(FeNiVTi)100-x alloys. This study will provide experimental and theoretical basis for the future design of new corrosion-resistant high-entropy alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Other, Other, Other |