Aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy
In this work, the aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy at various temperatures are investigated. The results show that the strengthening after quenching is primarily attributed to the immediate precipitation of the semi-coherent ∼Mg3Zn phase. The aging softening of the studie...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2025-04-01
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| Series: | Journal of Magnesium and Alloys |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956724001191 |
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| author | Yuchuan Huang Jiawei Sun Fangzhou Qi Youjie Guo Guohua Wu Wencai Liu |
| author_facet | Yuchuan Huang Jiawei Sun Fangzhou Qi Youjie Guo Guohua Wu Wencai Liu |
| author_sort | Yuchuan Huang |
| collection | DOAJ |
| description | In this work, the aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy at various temperatures are investigated. The results show that the strengthening after quenching is primarily attributed to the immediate precipitation of the semi-coherent ∼Mg3Zn phase. The aging softening of the studied alloy is mainly caused by the rapid transformation of the strengthening ∼Mg3Zn phase to the softening MgLi(Al, Zn) phase, along with the coarsening of the α-Mg matrix and precipitates within β-Li matrix. Further analysis indicates that the quick precipitation and transformation of ∼Mg3Zn is a consequence of the high diffusion rate of solute atoms, resulting from dense vacancy concentration in the β-Li matrix. This research bridges a critical gap in the study of aging mechanism in the dual-phase Mg-Li-Al-Zn alloy, providing a theoretical basis for the development and application of high-performance and thermal-stable Mg-Li alloys. |
| format | Article |
| id | doaj-art-814c95a6544a4e11bf9ea59e2806c05c |
| institution | OA Journals |
| issn | 2213-9567 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj-art-814c95a6544a4e11bf9ea59e2806c05c2025-08-20T02:13:44ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672025-04-011341646165910.1016/j.jma.2024.03.017Aging response and mechanism of dual-phase Mg-Li-Al-Zn alloyYuchuan Huang0Jiawei Sun1Fangzhou Qi2Youjie Guo3Guohua Wu4Wencai Liu5National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaNational Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaNational Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaNational Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaNational Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaCorresponding author.; National Engineering Research Center of Light Alloy Net Forming and State Key Laboratory of Metal Matrix Composite, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaIn this work, the aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy at various temperatures are investigated. The results show that the strengthening after quenching is primarily attributed to the immediate precipitation of the semi-coherent ∼Mg3Zn phase. The aging softening of the studied alloy is mainly caused by the rapid transformation of the strengthening ∼Mg3Zn phase to the softening MgLi(Al, Zn) phase, along with the coarsening of the α-Mg matrix and precipitates within β-Li matrix. Further analysis indicates that the quick precipitation and transformation of ∼Mg3Zn is a consequence of the high diffusion rate of solute atoms, resulting from dense vacancy concentration in the β-Li matrix. This research bridges a critical gap in the study of aging mechanism in the dual-phase Mg-Li-Al-Zn alloy, providing a theoretical basis for the development and application of high-performance and thermal-stable Mg-Li alloys.http://www.sciencedirect.com/science/article/pii/S2213956724001191Mg-Li-Al-Zn alloyAging behaviorPrecipitateTensile properties |
| spellingShingle | Yuchuan Huang Jiawei Sun Fangzhou Qi Youjie Guo Guohua Wu Wencai Liu Aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy Journal of Magnesium and Alloys Mg-Li-Al-Zn alloy Aging behavior Precipitate Tensile properties |
| title | Aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy |
| title_full | Aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy |
| title_fullStr | Aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy |
| title_full_unstemmed | Aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy |
| title_short | Aging response and mechanism of dual-phase Mg-Li-Al-Zn alloy |
| title_sort | aging response and mechanism of dual phase mg li al zn alloy |
| topic | Mg-Li-Al-Zn alloy Aging behavior Precipitate Tensile properties |
| url | http://www.sciencedirect.com/science/article/pii/S2213956724001191 |
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