About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Advances in Multi-Principal Element Alloys III: Mechanical Behavior
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Presentation Title |
Improved Resistance to Grain Growth In Multi Principal Element Alloys |
Author(s) |
Diana Farkas |
On-Site Speaker (Planned) |
Diana Farkas |
Abstract Scope |
This study investigates the effects of compositional complexity on the kinetics of grain growth in nanocrystalline high entropy alloys. Three-dimensional atomistic molecular dynamics simulations are utilized with model interatomic potentials for a five component FCC alloy. The effect of compositional complexity is isolated by comparing with a specially developed single element potential that reproduces the same basic properties without the compositional complexity. The comparison reveals that compositional complexity results in exceptional resistance to grain growth. Sluggish grain growth can be related to sluggish diffusion in the grain boundaries. The results also reveal that different grain boundaries are affected in different ways by the presence of compositional complexity. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Computational Materials Science & Engineering, Modeling and Simulation |