Theory-guided design of high-entropy alloys with enhanced strength-ductility synergy

Zongrui Pei (), Shiteng Zhao, Martin Detrois, Paul D. Jablonski, Jeffrey A. Hawk, David E. Alman, Mark Asta, Andrew M. Minor and Michael C. Gao ()
Additional contact information
Zongrui Pei: National Energy Technology Laboratory
Shiteng Zhao: University of California
Martin Detrois: National Energy Technology Laboratory
Paul D. Jablonski: National Energy Technology Laboratory
Jeffrey A. Hawk: National Energy Technology Laboratory
David E. Alman: National Energy Technology Laboratory
Mark Asta: University of California
Andrew M. Minor: University of California
Michael C. Gao: National Energy Technology Laboratory

Nature Communications, 2023, vol. 14, issue 1, 1-8

Abstract: Abstract Metallic alloys have played essential roles in human civilization due to their balanced strength and ductility. Metastable phases and twins have been introduced to overcome the strength-ductility tradeoff in face-centered cubic (FCC) high-entropy alloys (HEAs). However, there is still a lack of quantifiable mechanisms to predict good combinations of the two mechanical properties. Here we propose a possible mechanism based on the parameter κ, the ratio of short-ranged interactions between closed-pack planes. It promotes the formation of various nanoscale stacking sequences and enhances the work-hardening ability of the alloys. Guided by the theory, we successfully designed HEAs with enhanced strength and ductility compared with other extensively studied CoCrNi-based systems. Our results not only offer a physical picture of the strengthening effects but can also be used as a practical design principle to enhance the strength-ductility synergy in HEAs.

Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-023-38111-6 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:14:y:2023:i:1:d:10.1038_s41467-023-38111-6

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-023-38111-6

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().