A comparative study of the role of Zn in microstructures and the mechanical properties of Mg–Gd–Y–Zr alloys
The microstructures and mechanical properties of Mg–8.5Gd–4.5Y–0.3Zr (wt.%) alloys with and without Zn addition were investigated in this study, and the strengthening mechanisms of these two alloys were also discussed. The results show that the as-extruded alloys possesses a fine and uniform microst...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
|
| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423013911 |
| _version_ | 1797745202833653760 |
|---|---|
| author | Xiangsheng Xia Dayu Shu Echuan Yang Chuankai Hu |
| author_facet | Xiangsheng Xia Dayu Shu Echuan Yang Chuankai Hu |
| author_sort | Xiangsheng Xia |
| collection | DOAJ |
| description | The microstructures and mechanical properties of Mg–8.5Gd–4.5Y–0.3Zr (wt.%) alloys with and without Zn addition were investigated in this study, and the strengthening mechanisms of these two alloys were also discussed. The results show that the as-extruded alloys possesses a fine and uniform microstructure, while the as-extruded alloy with Zn addition has finer grains due to the dislocation motion inhibited by the long-period stacking ordered (LPSO) phase. Dynamic precipitation occurs during the extrusion process and unevenly distributes in both alloys, which is beneficial for the grain refinement. The yield strength and elongation of the peak-aged alloy with Zn addition are about 56 MPa and 2 times higher than that of the alloy without Zn addition; this higher elongation and yield strength can be mainly ascribed to the LPSO and γ′ phases strengthening. |
| first_indexed | 2024-03-12T15:20:56Z |
| format | Article |
| id | doaj.art-8da1a900347d44c0868dacb3587e2adb |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-12T15:20:56Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-8da1a900347d44c0868dacb3587e2adb2023-08-11T05:33:42ZengElsevierJournal of Materials Research and Technology2238-78542023-07-012529032912A comparative study of the role of Zn in microstructures and the mechanical properties of Mg–Gd–Y–Zr alloysXiangsheng Xia0Dayu Shu1Echuan Yang2Chuankai Hu3Southwest Technology and Engineering Research Institute, Chongqing, 400039, PR China; College of Mechanical Engineering, Chongqing University of Technology, 400054, PR China; Corresponding author. Southwest Technology and Engineering Research Institute, Chongqing, 400039, PR China.Southwest Technology and Engineering Research Institute, Chongqing, 400039, PR ChinaCollege of Mechanical Engineering, Chongqing University of Technology, 400054, PR ChinaSouthwest Technology and Engineering Research Institute, Chongqing, 400039, PR ChinaThe microstructures and mechanical properties of Mg–8.5Gd–4.5Y–0.3Zr (wt.%) alloys with and without Zn addition were investigated in this study, and the strengthening mechanisms of these two alloys were also discussed. The results show that the as-extruded alloys possesses a fine and uniform microstructure, while the as-extruded alloy with Zn addition has finer grains due to the dislocation motion inhibited by the long-period stacking ordered (LPSO) phase. Dynamic precipitation occurs during the extrusion process and unevenly distributes in both alloys, which is beneficial for the grain refinement. The yield strength and elongation of the peak-aged alloy with Zn addition are about 56 MPa and 2 times higher than that of the alloy without Zn addition; this higher elongation and yield strength can be mainly ascribed to the LPSO and γ′ phases strengthening.http://www.sciencedirect.com/science/article/pii/S2238785423013911Magnesium alloysLPSO phaseAgeing hardeningMicrostructureMechanical properties |
| spellingShingle | Xiangsheng Xia Dayu Shu Echuan Yang Chuankai Hu A comparative study of the role of Zn in microstructures and the mechanical properties of Mg–Gd–Y–Zr alloys Journal of Materials Research and Technology Magnesium alloys LPSO phase Ageing hardening Microstructure Mechanical properties |
| title | A comparative study of the role of Zn in microstructures and the mechanical properties of Mg–Gd–Y–Zr alloys |
| title_full | A comparative study of the role of Zn in microstructures and the mechanical properties of Mg–Gd–Y–Zr alloys |
| title_fullStr | A comparative study of the role of Zn in microstructures and the mechanical properties of Mg–Gd–Y–Zr alloys |
| title_full_unstemmed | A comparative study of the role of Zn in microstructures and the mechanical properties of Mg–Gd–Y–Zr alloys |
| title_short | A comparative study of the role of Zn in microstructures and the mechanical properties of Mg–Gd–Y–Zr alloys |
| title_sort | comparative study of the role of zn in microstructures and the mechanical properties of mg gd y zr alloys |
| topic | Magnesium alloys LPSO phase Ageing hardening Microstructure Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423013911 |
| work_keys_str_mv | AT xiangshengxia acomparativestudyoftheroleofzninmicrostructuresandthemechanicalpropertiesofmggdyzralloys AT dayushu acomparativestudyoftheroleofzninmicrostructuresandthemechanicalpropertiesofmggdyzralloys AT echuanyang acomparativestudyoftheroleofzninmicrostructuresandthemechanicalpropertiesofmggdyzralloys AT chuankaihu acomparativestudyoftheroleofzninmicrostructuresandthemechanicalpropertiesofmggdyzralloys AT xiangshengxia comparativestudyoftheroleofzninmicrostructuresandthemechanicalpropertiesofmggdyzralloys AT dayushu comparativestudyoftheroleofzninmicrostructuresandthemechanicalpropertiesofmggdyzralloys AT echuanyang comparativestudyoftheroleofzninmicrostructuresandthemechanicalpropertiesofmggdyzralloys AT chuankaihu comparativestudyoftheroleofzninmicrostructuresandthemechanicalpropertiesofmggdyzralloys |