Achieving good ductility in high-strength Mg-19Gd binary alloy by stacking faults induced 〈c+a〉 slip
A Mg-19Gd binary alloy with exceptionally good synergy of strength and ductility has been fabricated by conventional hot extrusion and aging. The aged alloy with a specific bimodal-grained structure achieves a yield strength of 482 MPa and an ultimate tensile strength of 535 MPa with a good elongation of 5%. The high strength arises from the high number density of β′ precipitates and a strong texture, while the good ductility is related to the excellent deformation ability of fine dynamic recrystallized grains and the compatible ability of <c+a> slips within elongated grains, activated by the high density of I1 stacking faults inside.
Authors
- Di Wu (ORCID: https://orcid.org/0009-0007-6659-8251)
- Hang Zhang (ORCID: https://orcid.org/0000-0001-6697-2214)
- Boshu Liu (ORCID: https://orcid.org/0009-0006-7816-2685)
- Houwen Chen (ORCID: https://orcid.org/0000-0001-6288-5711)
- Gaowu W. Qin (ORCID: https://orcid.org/0000-0002-0852-6715)
- Rongguang Li
- Shanshan Li (ORCID: https://orcid.org/0000-0002-4182-0078)
- Yu Zhang (ORCID: https://orcid.org/0000-0003-2321-7918)
- Li Xiao (ORCID: https://orcid.org/0000-0002-6416-3138)
- Yan Yang (ORCID: https://orcid.org/0000-0002-0128-2172)
Institutions
- Chongqing University (CN)
- Chinese Academy of Sciences (CN)
- Shenyang University of Chemical Technology (CN)
- Universidad del Noreste (MX)
- Northeastern University (CN)
Publication Details
- Journal
- Materials Research Letters
- Published
- 2024-12-13
- DOI
- https://doi.org/10.1080/21663831.2024.2438871
- Citations
- 9
- Primary Topic
- Magnesium Alloys: Properties and Applications
- Type
- article
- Field-Weighted Citation Impact
- 1.56
Funders
- National Natural Science Foundation of China
- Northeastern University
- Natural Science Foundation of Liaoning Province