|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Advances in Multi-Principal Elements Alloys X
||A Periodic Table for HEA Design
||Scott Broderick, Krishna Rajan, Debasis Sengupta, Stephen Giles
|On-Site Speaker (Planned)
In this presentation, we provide an overview of the application of graph theory to the design of high entropy alloys (HEAs) based on the uncovering of 'hidden' chemical design rules. We capture the thermodynamic and structural complexity of HEAs and identify the potential existence of new combinations of phases not previously identified through tracking the connections in the network. We introduce a new series of indices for chemical substitution rules linking HEA composition, strength and ductility. The advantage of the network approach is that it incorporates numerous criteria for design (including mechanical and environmental properties, as well as microstructure) to identify HEA compositions when there are trade-offs between the various criteria. By mapping the high dimensional nature of the systematics of elemental data embedded in the periodic table into the form of a network graph, one can uncover the influence of specific combinations elements on engineering properties of HEAs.