Hard-soft-hard layered structure for enhanced mechanical properties in corrugated rolled AZ31 magnesium alloy sheets
Mixed-grains magnesium alloy plates with soft-hard-soft layered structure, fabricated by corrugated plate rolling, exhibit simultaneous improvements in both strength and ductility. The corrugated and flat sides primarily consist of twins, necklace grains and recrystallized grains, while the middle l...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S223878542500239X |
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| author | Biwu Zhu Yue Cui Kang Xu Xiao Liu Fan Ye Wenhui Liu Pengcheng Guo Yuanzhi Wu Xiang Li |
| author_facet | Biwu Zhu Yue Cui Kang Xu Xiao Liu Fan Ye Wenhui Liu Pengcheng Guo Yuanzhi Wu Xiang Li |
| author_sort | Biwu Zhu |
| collection | DOAJ |
| description | Mixed-grains magnesium alloy plates with soft-hard-soft layered structure, fabricated by corrugated plate rolling, exhibit simultaneous improvements in both strength and ductility. The corrugated and flat sides primarily consist of twins, necklace grains and recrystallized grains, while the middle layer is dominated by coarse grains with a small amount of twins and necklace grains. As the average strain rate increases, the twin density and shear band decrease. At a constant average strain rate, from the valley-to-peak, the twin density and the number of coarse grains gradually decrease, while the recrystallization fraction gradually increases. At an average strain rate of 4.3 s−1, the corrugated rolled plates with R = 3 mm achieve an optimal balance of strength (262.6 MPa) and ductility (30.6 %). The corrugated side and flat side contribute to strength through fine grain strengthening and orientation strengthening, while the middle layer with coarse grains provides plasticity. The ordered orientation gradient “sandwich” texture further ensuring ductility. The hard-soft-hard layered structure and the configuration of coarse grains surrounded by fine grains synergistically lead to exceptional mechanical properties. |
| format | Article |
| id | doaj-art-021263da38a04cc8ac1d6d9d22f0b243 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-021263da38a04cc8ac1d6d9d22f0b2432025-02-09T05:00:32ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013532053216Hard-soft-hard layered structure for enhanced mechanical properties in corrugated rolled AZ31 magnesium alloy sheetsBiwu Zhu0Yue Cui1Kang Xu2Xiao Liu3Fan Ye4Wenhui Liu5Pengcheng Guo6Yuanzhi Wu7Xiang Li8College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen, 361021, China; Hunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, Hunan University of Science and Technology, Xiangtan, 411201, ChinaHunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, Hunan University of Science and Technology, Xiangtan, 411201, ChinaHunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, Hunan University of Science and Technology, Xiangtan, 411201, ChinaCollege of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen, 361021, China; Hunan Engineering Research Center of Forming Technology and Damage Resistance Evaluation for High Efficiency Light Alloy Components, Hunan University of Science and Technology, Xiangtan, 411201, China; Corresponding author. College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen, 361021, China.College of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen, 361021, ChinaCollege of Marine Equipment and Mechanical Engineering, Jimei University, Xiamen, 361021, China; Corresponding author.School of Intelligent Manufacturing and Mechanical Engineering, Hunan Institute of Technology, Hengyang, 421002, ChinaSchool of Intelligent Manufacturing and Mechanical Engineering, Hunan Institute of Technology, Hengyang, 421002, ChinaHebi Magnesium Tu Technology Co., Ltd., Hebi, 458030, ChinaMixed-grains magnesium alloy plates with soft-hard-soft layered structure, fabricated by corrugated plate rolling, exhibit simultaneous improvements in both strength and ductility. The corrugated and flat sides primarily consist of twins, necklace grains and recrystallized grains, while the middle layer is dominated by coarse grains with a small amount of twins and necklace grains. As the average strain rate increases, the twin density and shear band decrease. At a constant average strain rate, from the valley-to-peak, the twin density and the number of coarse grains gradually decrease, while the recrystallization fraction gradually increases. At an average strain rate of 4.3 s−1, the corrugated rolled plates with R = 3 mm achieve an optimal balance of strength (262.6 MPa) and ductility (30.6 %). The corrugated side and flat side contribute to strength through fine grain strengthening and orientation strengthening, while the middle layer with coarse grains provides plasticity. The ordered orientation gradient “sandwich” texture further ensuring ductility. The hard-soft-hard layered structure and the configuration of coarse grains surrounded by fine grains synergistically lead to exceptional mechanical properties.http://www.sciencedirect.com/science/article/pii/S223878542500239XAZ31 magnesiumCorrugated rollingHard-soft-hard layered structureMechanical property |
| spellingShingle | Biwu Zhu Yue Cui Kang Xu Xiao Liu Fan Ye Wenhui Liu Pengcheng Guo Yuanzhi Wu Xiang Li Hard-soft-hard layered structure for enhanced mechanical properties in corrugated rolled AZ31 magnesium alloy sheets Journal of Materials Research and Technology AZ31 magnesium Corrugated rolling Hard-soft-hard layered structure Mechanical property |
| title | Hard-soft-hard layered structure for enhanced mechanical properties in corrugated rolled AZ31 magnesium alloy sheets |
| title_full | Hard-soft-hard layered structure for enhanced mechanical properties in corrugated rolled AZ31 magnesium alloy sheets |
| title_fullStr | Hard-soft-hard layered structure for enhanced mechanical properties in corrugated rolled AZ31 magnesium alloy sheets |
| title_full_unstemmed | Hard-soft-hard layered structure for enhanced mechanical properties in corrugated rolled AZ31 magnesium alloy sheets |
| title_short | Hard-soft-hard layered structure for enhanced mechanical properties in corrugated rolled AZ31 magnesium alloy sheets |
| title_sort | hard soft hard layered structure for enhanced mechanical properties in corrugated rolled az31 magnesium alloy sheets |
| topic | AZ31 magnesium Corrugated rolling Hard-soft-hard layered structure Mechanical property |
| url | http://www.sciencedirect.com/science/article/pii/S223878542500239X |
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