Lightweight single-phase Al-based complex concentrated alloy with high specific strength

Mingliang Han, Yuan Wu (), Xiaobin Zong, Yaozu Shen (), Fei Zhang, Hongbo Lou, Xiao Dong, Zhidan Zeng, Xiangyang Peng, Shuo Hou, Guangyao Lu, Lianghua Xiong, Bingmin Yan, Huiyang Gou, Yanping Yang, Xueyan Du, Xiaoyuan Yuan, Yingjie Zhang, Meiyuan Jiao, Xiongjun Liu, Suihe Jiang, Hui Wang, Andrey A. Rempel, Xiaobin Zhang (), Qiaoshi Zeng () and Z. P. Lu
Additional contact information
Mingliang Han: University of Science and Technology Beijing
Yuan Wu: University of Science and Technology Beijing
Xiaobin Zong: University of Science and Technology Beijing
Yaozu Shen: University of Science and Technology Beijing
Fei Zhang: Center for High Pressure Science and Technology Advanced Research
Hongbo Lou: Center for High Pressure Science and Technology Advanced Research
Xiao Dong: Nankai University
Zhidan Zeng: Center for High Pressure Science and Technology Advanced Research
Xiangyang Peng: Ltd.
Shuo Hou: Ltd.
Guangyao Lu: Ltd.
Lianghua Xiong: Shanghai Jiao Tong University
Bingmin Yan: Center for High Pressure Science and Technology Advanced Research
Huiyang Gou: Center for High Pressure Science and Technology Advanced Research
Yanping Yang: Center for High Pressure Science and Technology Advanced Research
Xueyan Du: Center for High Pressure Science and Technology Advanced Research
Xiaoyuan Yuan: University of Science and Technology Beijing
Yingjie Zhang: University of Science and Technology Beijing
Meiyuan Jiao: University of Science and Technology Beijing
Xiongjun Liu: University of Science and Technology Beijing
Suihe Jiang: University of Science and Technology Beijing
Hui Wang: University of Science and Technology Beijing
Andrey A. Rempel: Institute of Metallurgy of the Ural Branch of the Russian Academy of Sciences
Xiaobin Zhang: University of Science and Technology Beijing
Qiaoshi Zeng: Center for High Pressure Science and Technology Advanced Research
Z. P. Lu: University of Science and Technology Beijing

Nature Communications, 2024, vol. 15, issue 1, 1-10

Abstract: Abstract Developing light yet strong aluminum (Al)-based alloys has been attracting unremitting efforts due to the soaring demand for energy-efficient structural materials. However, this endeavor is impeded by the limited solubility of other lighter components in Al. Here, we propose to surmount this challenge by converting multiple brittle phases into a ductile solid solution in Al-based complex concentrated alloys (CCA) by applying high pressure and temperature. We successfully develop a face-centered cubic single-phase Al-based CCA, Al55Mg35Li5Zn5, with a low density of 2.40 g/cm3 and a high specific yield strength of 344×103 N·m/kg (typically ~ 200×103 N·m/kg in conventional Al-based alloys). Our analysis reveals that formation of the single-phase CCA can be attributed to the decreased difference in atomic size and electronegativity between the solute elements and Al under high pressure, as well as the synergistic high entropy effect caused by high temperature and high pressure. The increase in strength originates mainly from high solid solution and nanoscale chemical fluctuations. Our findings could offer a viable route to explore lightweight single-phase CCAs in a vast composition-temperature-pressure space with enhanced mechanical properties.

Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-024-51387-6 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:15:y:2024:i:1:d:10.1038_s41467-024-51387-6

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

DOI: 10.1038/s41467-024-51387-6

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 ().