| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanical Behavior Related to Interface Physics IV
|
| Presentation Title |
Variation in Oxide Dispersion Strengthening Due to Interfacial Structure |
| Author(s) |
Jacob P. Tavenner, Mikhail I Mendelev, Gabriel Plummer, Timothy M Smith, John W Lawson |
| On-Site Speaker (Planned) |
Jacob P. Tavenner |
| Abstract Scope |
Strengthening of metal alloys through hard ceramic particles is a common technique used to improve mechanical performance. However, the combination of metallic and oxide systems in a single simulation has proven challenging for large-scale atomistic simulation due to the complexity of describing metal and oxide bonding behaviors with a single semi-empirical potential which is fast enough to enable large enough simulations. The recent development of such a potential has enabled investigation into the effects of dislocation-particle interactions in oxide-strengthened alloys from an atomistic perspective. Using Ni-NiO as the model system for such metal-oxide strengthening behaviors, we develop simulations to investigate the effects of various oxide-metal interface structures on the strengthening improvement offered by oxide particles. In this talk, we demonstrate the unique deformation behaviors uncovered by such simulations and the underlying atomic mechanisms behind oxide particle strengthening effects. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Mechanical Properties, High-Temperature Materials |