Influence of Ag on the precipitates in Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy
This paper investigates the influence of Ag element on the microstructure and mechanical properties, as well as the synergistic strengthening and toughening mechanisms of the Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy. The study shows that the addition of 0.1 wt% Ag increases the yield strength, ultimate tensile...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424028837 |
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| author | Cheng Renju Zhou Yongfeng Wang Haijun Jiang Linxi Tang Aitao Jiang Bin |
| author_facet | Cheng Renju Zhou Yongfeng Wang Haijun Jiang Linxi Tang Aitao Jiang Bin |
| author_sort | Cheng Renju |
| collection | DOAJ |
| description | This paper investigates the influence of Ag element on the microstructure and mechanical properties, as well as the synergistic strengthening and toughening mechanisms of the Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy. The study shows that the addition of 0.1 wt% Ag increases the yield strength, ultimate tensile strength, and elongation to 225 MPa, 338 MPa, and 16.5%, respectively, which are 25%, 14%, and 73% higher compared to the Ag-free alloy. The introduction of Ag increases the aspect ratio of nanoscale precipitates β′ phases from 4.4:1 to 6:1, enhancing the ability of dislocation pinning and thereby improving the alloy's strength. Moreover, Ag addition can reduce the volume fraction of 18R-LPSO phases, increases the numbers of I1 (ABCB) and I2 (ABCA) stacking faults, and particularly enhancing the activation of <c+a> slip systems, thus promoting the alloy's ductility. |
| format | Article |
| id | doaj-art-2b2edb1b48484d2ca6fadc34d54fceaa |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-2b2edb1b48484d2ca6fadc34d54fceaa2025-01-19T06:25:21ZengElsevierJournal of Materials Research and Technology2238-78542025-01-0134577584Influence of Ag on the precipitates in Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloyCheng Renju0Zhou Yongfeng1Wang Haijun2Jiang Linxi3Tang Aitao4Jiang Bin5College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China; Corresponding author.College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, ChinaCollege of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China; College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; Corresponding author. College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, China.College of Materials Science and Engineering, Chongqing University of Technology, Chongqing, 400054, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, ChinaCollege of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; Corresponding author.This paper investigates the influence of Ag element on the microstructure and mechanical properties, as well as the synergistic strengthening and toughening mechanisms of the Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy. The study shows that the addition of 0.1 wt% Ag increases the yield strength, ultimate tensile strength, and elongation to 225 MPa, 338 MPa, and 16.5%, respectively, which are 25%, 14%, and 73% higher compared to the Ag-free alloy. The introduction of Ag increases the aspect ratio of nanoscale precipitates β′ phases from 4.4:1 to 6:1, enhancing the ability of dislocation pinning and thereby improving the alloy's strength. Moreover, Ag addition can reduce the volume fraction of 18R-LPSO phases, increases the numbers of I1 (ABCB) and I2 (ABCA) stacking faults, and particularly enhancing the activation of <c+a> slip systems, thus promoting the alloy's ductility.http://www.sciencedirect.com/science/article/pii/S2238785424028837Mg-Gd-Y magnesium alloyStacking faultStrengthening and toughening mechanism |
| spellingShingle | Cheng Renju Zhou Yongfeng Wang Haijun Jiang Linxi Tang Aitao Jiang Bin Influence of Ag on the precipitates in Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy Journal of Materials Research and Technology Mg-Gd-Y magnesium alloy Stacking fault Strengthening and toughening mechanism |
| title | Influence of Ag on the precipitates in Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy |
| title_full | Influence of Ag on the precipitates in Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy |
| title_fullStr | Influence of Ag on the precipitates in Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy |
| title_full_unstemmed | Influence of Ag on the precipitates in Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy |
| title_short | Influence of Ag on the precipitates in Mg-8Gd-0.8Y-0.5Zn-0.3Zr alloy |
| title_sort | influence of ag on the precipitates in mg 8gd 0 8y 0 5zn 0 3zr alloy |
| topic | Mg-Gd-Y magnesium alloy Stacking fault Strengthening and toughening mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424028837 |
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