Excellent strength-ductility balance of fully recrystallized fine-grained Mg-Y-Zn-Ni extrusion alloy with 14H-LPSO lamellas
Simultaneously improving strength and ductility is a challenge for Mg alloys. Herein, we report a strong and ductile Mg90Y4Zn2Ni4 (at. %) extrusion alloy with yield strength of 426 MPa, ultimate tensile strength of 451 MPa and elongation of 25%. Experiment and phase field model show that 14H-LPSO phases refine from blocks to lamellas through cracking, dissolving and kinking during deformation. Moreover, excellent strength-ductility balance is attributed to fully and fine recrystallized grains, dispersed Mg(Ni, Zn)4Y particles and 14H-LPSO lamellas, high-density dislocations and easy mobility of basal slip. These findings provide a valuable reference for preparing high-performance Mg alloys.
Authors
- Chuan Shuai
- Hua Hou (ORCID: https://orcid.org/0000-0003-0026-8691)
- Wei Liu (ORCID: https://orcid.org/0000-0002-3865-8145)
- Wen‐Yu Liu (ORCID: https://orcid.org/0000-0001-9683-9596)
- Yuhong Zhao
- Zhuo Song (ORCID: https://orcid.org/0009-0001-6172-0621)
- Taoze Xie
- Yuntao Zhang (ORCID: https://orcid.org/0009-0006-9134-5582)
Institutions
- North University of China (CN)
- Liaoning Academy of Materials
- Taiyuan University of Science and Technology (CN)
- University of Science and Technology Beijing (CN)
Publication Details
- Journal
- Materials Research Letters
- Published
- 2025-03-05
- DOI
- https://doi.org/10.1080/21663831.2025.2471961
- Citations
- 11
- Primary Topic
- Magnesium Alloys: Properties and Applications
- Type
- article
- Field-Weighted Citation Impact
- 6.57
Funders
- National Natural Science Foundation of China
- Shanxi Scholarship Council of China
- Natural Science Foundation of Shanxi Province
- Chinese Aeronautical Establishment
- Shenzhen Fundamental Research Program
- National Major Science and Technology Projects of China