Materials selection considerations for high entropy alloys

• Main Authors: Fu, Xiaofeng (Author), Schuh, Christopher A (Author), Olivetti, Elsa A. (Author)
• Other Authors: Massachusetts Institute of Technology. Department of Materials Science and Engineering (Contributor), Massachusetts Institute of Technology. Institute for Data, Systems, and Society (Contributor), Olivetti, Elsa (Contributor)
• Format: Article
• Language: English
• Published: Elsevier BV, 2020-01-28T19:04:31Z.
• Subjects: Article
• Online Access: Get fulltext

Increased interest in high entropy alloys (HEA)s has led to significant activity in the development of new equimolar multicomponent metal systems. The present viewpoint article suggests applying a lens of practicality related to alloy economics and resource usage issues. A framework for HEA materials selection is presented to assist the metallurgical community as it searches for HEAs with feasible implementation possibilities, by identifying unsuitable alloying elements based on price or metrics of supply availability. For some metrics, such as price volatility, the elemental diversification in HEAs could prove beneficial, while for others, such as recyclability, elemental breadth introduces significant challenges. Keywords: High-entropy alloys; Multicomponent; Modeling; Analytical methods
National Science Foundation (Grant CBET-1605050)