Achieving strength-ductility synergy in novel heterogeneous lamella structures of Al-Mg-Sc-Zr-Ag alloys
This paper presents a novel method for preparing heterogeneously structured AlMgScZrAg alloys with excellent properties by microalloying. The addition of Ag modified the precipitation behavior of the alloy, resulting in the combination of multi-scale precipitates and a heterogeneous lamella structure (HLS). Compared with the alloy without Ag, the AlMgScZrAg alloy exhibited a 29.5% increase in yield strength (from 186 MPa to 241 MPa) without sacrificing plasticity. The synergistic strengthening mechanisms of the ‘heterostructure-dislocation-precipitate’ microstructure enhance both the strength and plasticity.
Authors
- Cheng Guo (ORCID: https://orcid.org/0000-0002-4743-4776)
- Hiromi Nagaumi (ORCID: https://orcid.org/0009-0009-0159-2080)
- Baoqiang Cong (ORCID: https://orcid.org/0000-0002-0961-0548)
- Haitao Zhang (ORCID: https://orcid.org/0000-0002-4100-7263)
- Hao Liu (ORCID: https://orcid.org/0000-0003-0266-9472)
- Xingang Liu (ORCID: https://orcid.org/0000-0003-2258-4265)
- Jing Zou (ORCID: https://orcid.org/0000-0002-4080-0032)
- Ran Ma
Institutions
- Soochow University (CN)
- Yanshan University (CN)
- Universidad del Noreste (MX)
- Northeastern University (CN)
Publication Details
- Journal
- Materials Research Letters
- Published
- 2025-02-12
- DOI
- https://doi.org/10.1080/21663831.2025.2464800
- Citations
- 9
- Primary Topic
- Aluminum Alloys Composites Properties
- Type
- article
- Field-Weighted Citation Impact
- 6.42
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Hebei Province