Microstructures and mechanical properties of Al–Zn–Mg–Cu alloy with the combined addition of Ti and Zr
The effects of combined Ti and Zr addition on microstructures and mechanical properties are systematically investigated in Al–Zn–Mg–Cu alloy by microstructure characterizations and a physical-based model. The results show that combined addition of Ti and Zr can promote the precipitation of nano L12...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422018117 |
| _version_ | 1797943117828063232 |
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| author | Zhiping Wang Qingqing Pu Yugang Li Peikang Xia Jiwei Geng Xianfeng Li Mingliang Wang Dong Chen Haowei Wang |
| author_facet | Zhiping Wang Qingqing Pu Yugang Li Peikang Xia Jiwei Geng Xianfeng Li Mingliang Wang Dong Chen Haowei Wang |
| author_sort | Zhiping Wang |
| collection | DOAJ |
| description | The effects of combined Ti and Zr addition on microstructures and mechanical properties are systematically investigated in Al–Zn–Mg–Cu alloy by microstructure characterizations and a physical-based model. The results show that combined addition of Ti and Zr can promote the precipitation of nano L12 Al3(Ti,Zr) dispersoids, while primary D022 Al3Ti and Al3(Ti,Zr) phases are formed during solidification when Ti addition is over 0.2 wt%. As compared to the 0Ti alloy, the ductility and toughness is enhanced markedly by 0.1–0.2 wt%Ti addition since the volume fraction of nano L12 Al3(Ti,Zr) dispersoids is increased. Both the strength and ductility are significantly decreased when Ti addition is more than 0.35 wt%. The strain hardening behavior and fractured morphology analyses suggest that the deterioration of mechanical properties is mainly due to the localized recrystallization and cracks caused by coarse primary phases, which cause the higher dislocation dynamic recovery rate. Combined addition of minor Ti and Zr elements may provide a simple approach to improve toughness and simultaneously reduce cost in developing high-strength Al alloys. |
| first_indexed | 2024-04-10T20:18:13Z |
| format | Article |
| id | doaj.art-cd8e0ccdf92946259d0e1ca2962b8e1d |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-10T20:18:13Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-cd8e0ccdf92946259d0e1ca2962b8e1d2023-01-26T04:45:30ZengElsevierJournal of Materials Research and Technology2238-78542023-01-0122747761Microstructures and mechanical properties of Al–Zn–Mg–Cu alloy with the combined addition of Ti and ZrZhiping Wang0Qingqing Pu1Yugang Li2Peikang Xia3Jiwei Geng4Xianfeng Li5Mingliang Wang6Dong Chen7Haowei Wang8State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China; Institute of Alumics Materials, Shanghai Jiao Tong University (Anhui), Huaibei 235000, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China; Anhui Provincial Engineering Research Center of Aluminium Matrix Composites, Huaibei 235000, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China; Institute of Alumics Materials, Shanghai Jiao Tong University (Anhui), Huaibei 235000, China; Corresponding author.State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China; Institute of Alumics Materials, Shanghai Jiao Tong University (Anhui), Huaibei 235000, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China; Institute of Alumics Materials, Shanghai Jiao Tong University (Anhui), Huaibei 235000, ChinaState Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China; Institute of Alumics Materials, Shanghai Jiao Tong University (Anhui), Huaibei 235000, China; Anhui Provincial Engineering Research Center of Aluminium Matrix Composites, Huaibei 235000, China; Corresponding author.State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China; Institute of Alumics Materials, Shanghai Jiao Tong University (Anhui), Huaibei 235000, China; Anhui Provincial Engineering Research Center of Aluminium Matrix Composites, Huaibei 235000, ChinaThe effects of combined Ti and Zr addition on microstructures and mechanical properties are systematically investigated in Al–Zn–Mg–Cu alloy by microstructure characterizations and a physical-based model. The results show that combined addition of Ti and Zr can promote the precipitation of nano L12 Al3(Ti,Zr) dispersoids, while primary D022 Al3Ti and Al3(Ti,Zr) phases are formed during solidification when Ti addition is over 0.2 wt%. As compared to the 0Ti alloy, the ductility and toughness is enhanced markedly by 0.1–0.2 wt%Ti addition since the volume fraction of nano L12 Al3(Ti,Zr) dispersoids is increased. Both the strength and ductility are significantly decreased when Ti addition is more than 0.35 wt%. The strain hardening behavior and fractured morphology analyses suggest that the deterioration of mechanical properties is mainly due to the localized recrystallization and cracks caused by coarse primary phases, which cause the higher dislocation dynamic recovery rate. Combined addition of minor Ti and Zr elements may provide a simple approach to improve toughness and simultaneously reduce cost in developing high-strength Al alloys.http://www.sciencedirect.com/science/article/pii/S2238785422018117Aluminium alloyAl3(Ti,Zr)Primary phaseMechanical propertiesStrain hardening |
| spellingShingle | Zhiping Wang Qingqing Pu Yugang Li Peikang Xia Jiwei Geng Xianfeng Li Mingliang Wang Dong Chen Haowei Wang Microstructures and mechanical properties of Al–Zn–Mg–Cu alloy with the combined addition of Ti and Zr Journal of Materials Research and Technology Aluminium alloy Al3(Ti,Zr) Primary phase Mechanical properties Strain hardening |
| title | Microstructures and mechanical properties of Al–Zn–Mg–Cu alloy with the combined addition of Ti and Zr |
| title_full | Microstructures and mechanical properties of Al–Zn–Mg–Cu alloy with the combined addition of Ti and Zr |
| title_fullStr | Microstructures and mechanical properties of Al–Zn–Mg–Cu alloy with the combined addition of Ti and Zr |
| title_full_unstemmed | Microstructures and mechanical properties of Al–Zn–Mg–Cu alloy with the combined addition of Ti and Zr |
| title_short | Microstructures and mechanical properties of Al–Zn–Mg–Cu alloy with the combined addition of Ti and Zr |
| title_sort | microstructures and mechanical properties of al zn mg cu alloy with the combined addition of ti and zr |
| topic | Aluminium alloy Al3(Ti,Zr) Primary phase Mechanical properties Strain hardening |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422018117 |
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