|About this Abstract
||3rd World Congress on High Entropy Alloys (HEA 2023)
||AI-accelerated Materials Informatics Method for the Discovery of Ductile Alloys
||Max Hodapp, Ivan Novikov, Olga Kovalyova, Alexander Shapeev
|On-Site Speaker (Planned)
In computational materials science, a common means for predicting macroscopic (e.g., mechanical) properties of an alloy is to define a model using combinations of descriptors that depend on some material properties (elastic constants, misfit volumes, etc.), representative for the macroscopic behavior. The material properties are usually computed using density functional theory (DFT). However, DFT scales cubically with the number of atoms and is thus impractical for a screening over many alloy compositions.
Here, we present a novel methodology which combines modeling approaches and machine-learning interatomic potentials. Machine-learning interatomic potentials are orders of magnitude faster than DFT, while achieving similar accuracy, allowing for a predictive and tractable high-throughput screening over the whole alloy space. The proposed methodology is illustrated by predicting the room temperature ductility of the medium-entropy alloy Mo-Nb-Ta.
||Planned: Metallurgical and Materials Transactions