Effect of preset twins on aging precipitates and mechanical properties of Mg-5Gd-3Y-0.5Zr alloy
Preset twins in Mg-5Gd-3Y-0.5Zr (GW53K) alloy, the effects of preset twins on the aging precipitates and mechanical properties of GW53K alloy were thoroughly investigated. The results showed that the preset twin boundaries provided nucleation locations for the aging precipitates and promoted the agi...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423031484 |
| _version_ | 1797338324399030272 |
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| author | Ao Gao Xiaoya Chen Quanan Li Laidong Yang |
| author_facet | Ao Gao Xiaoya Chen Quanan Li Laidong Yang |
| author_sort | Ao Gao |
| collection | DOAJ |
| description | Preset twins in Mg-5Gd-3Y-0.5Zr (GW53K) alloy, the effects of preset twins on the aging precipitates and mechanical properties of GW53K alloy were thoroughly investigated. The results showed that the preset twin boundaries provided nucleation locations for the aging precipitates and promoted the aging precipitation behavior of GW53K alloy. High density of lath-like twins increased the strength of the alloy. Lattice distortions were generated around twin boundaries, which impeded dislocation slip and produced stress concentration, so that the solute atoms Gd and Y easily clustered there to form precipitates. Precipitates could form ''barriers'' with twin boundaries and increased the ability of twin boundaries to block dislocation slip and the movement of twins, which further improved the strength of the alloy. However, the presence of twins accelerated the fracture process of GW53K alloy and reduced plasticity. |
| first_indexed | 2024-03-08T09:29:23Z |
| format | Article |
| id | doaj.art-f53cd747417f4c7caa2229a7f784decf |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-08T09:29:23Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-f53cd747417f4c7caa2229a7f784decf2024-01-31T05:43:33ZengElsevierJournal of Materials Research and Technology2238-78542024-01-012810021012Effect of preset twins on aging precipitates and mechanical properties of Mg-5Gd-3Y-0.5Zr alloyAo Gao0Xiaoya Chen1Quanan Li2Laidong Yang3School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471023, ChinaSchool of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471023, China; Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology, Luoyang, 471023, China; Corresponding author. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471023, China.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471023, China; Provincial and Ministerial Co-construction of Collaborative Innovation Center for Non-ferrous Metal New Materials and Advanced Processing Technology, Luoyang, 471023, China; Longmen Laboratory, Luoyang, 471000, China; Corresponding author. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471023, China.School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang, 471023, ChinaPreset twins in Mg-5Gd-3Y-0.5Zr (GW53K) alloy, the effects of preset twins on the aging precipitates and mechanical properties of GW53K alloy were thoroughly investigated. The results showed that the preset twin boundaries provided nucleation locations for the aging precipitates and promoted the aging precipitation behavior of GW53K alloy. High density of lath-like twins increased the strength of the alloy. Lattice distortions were generated around twin boundaries, which impeded dislocation slip and produced stress concentration, so that the solute atoms Gd and Y easily clustered there to form precipitates. Precipitates could form ''barriers'' with twin boundaries and increased the ability of twin boundaries to block dislocation slip and the movement of twins, which further improved the strength of the alloy. However, the presence of twins accelerated the fracture process of GW53K alloy and reduced plasticity.http://www.sciencedirect.com/science/article/pii/S2238785423031484Mg-Gd-Y-ZrPreset twinsPrecipitatesMechanical property |
| spellingShingle | Ao Gao Xiaoya Chen Quanan Li Laidong Yang Effect of preset twins on aging precipitates and mechanical properties of Mg-5Gd-3Y-0.5Zr alloy Journal of Materials Research and Technology Mg-Gd-Y-Zr Preset twins Precipitates Mechanical property |
| title | Effect of preset twins on aging precipitates and mechanical properties of Mg-5Gd-3Y-0.5Zr alloy |
| title_full | Effect of preset twins on aging precipitates and mechanical properties of Mg-5Gd-3Y-0.5Zr alloy |
| title_fullStr | Effect of preset twins on aging precipitates and mechanical properties of Mg-5Gd-3Y-0.5Zr alloy |
| title_full_unstemmed | Effect of preset twins on aging precipitates and mechanical properties of Mg-5Gd-3Y-0.5Zr alloy |
| title_short | Effect of preset twins on aging precipitates and mechanical properties of Mg-5Gd-3Y-0.5Zr alloy |
| title_sort | effect of preset twins on aging precipitates and mechanical properties of mg 5gd 3y 0 5zr alloy |
| topic | Mg-Gd-Y-Zr Preset twins Precipitates Mechanical property |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423031484 |
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