About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Computational Thermodynamics and Kinetics
|
Presentation Title |
Unraveling the thermodynamics of precipitation hardenable multi-component refractory alloys |
Author(s) |
Anirudh Raju Natarajan |
On-Site Speaker (Planned) |
Anirudh Raju Natarajan |
Abstract Scope |
Refractory alloys are attractive candidates for high-temperature applications. However, multi-component refractory alloys made of elements in groups 4, 5 and 6 of the periodic table often lack sufficient mechanical strength for structural applications. Precipitation hardening is a promising route that could enhance the strength of these alloys. The addition of alloying elements, such as aluminum, can induce the formation a two-phase microstructure comprising an ordered precipitate that is embedded within a disordered matrix phase. In this talk, we will utilize first-principles electronic structure calculations and statistical mechanics techniques to discern precipitate crystal structures and precipitation mechanisms in aluminum-containing multi-component refractory alloys. High-throughput computations and rigorous Monte-Carlo simulations will be employed together with machine-learning techniques to elucidate the thermodynamics of precipitate formation in this class of materials. We will also highlight some promising alloy compositions and processing conditions that could enhance the mechanical strength and thermal stability of refractory alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Phase Transformations, Modeling and Simulation |