About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Local Ordering in Materials and Its Impacts on Mechanical Behaviors, Radiation Damage, and Corrosion
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Presentation Title |
Nonequilibrium Short-range Order in High-entropy Alloys |
Author(s) |
Mahmudul Islam, Yifan Cao, Killian Sheriff, Rodrigo Freitas |
On-Site Speaker (Planned) |
Mahmudul Islam |
Abstract Scope |
Nonequilibrium processes such as radiation damage or plastic deformation have long been recognized to modify the internal state of alloys by acting as an external forcing mechanism inducing athermal events. Here we demonstrate that these athermal events lead high-entropy alloys (HEA) to nonequilibrium states of short-range order (SRO), which can be quantified as a function of the driving force using a combination of machine learning techniques and information theory. We employ atomistic simulations of nonequilibrium processes in CrCoNi HEA to illustrate this approach. Manipulation of driving force parameters enable a diverse range of SRO states without changing the temperature or composition, which highlights the potential of employing nonequilibrium processes to engineer SRO in HEAs, leading to enhanced design and functionality. |
Proceedings Inclusion? |
Planned: |
Keywords |
High-Entropy Alloys, Modeling and Simulation, Machine Learning |