Effect of electromagnetic forming–heat treatment process on mechanical and corrosion properties of 2024 aluminum alloy
The 2024 aluminum alloys are used in a wide range of industrial applications, and improvement in their formability and serviceability is key in the manufacturing process. Electromagnetic forming (EMF) has proven to be an effective means of improving the formability of aluminum alloys. By combining E...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423000364 |
| _version_ | 1827978338328641536 |
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| author | Ang Xiao Yuhong Lin Changqing Huang Xiaohui Cui Ziqin Yan Zhihao Du |
| author_facet | Ang Xiao Yuhong Lin Changqing Huang Xiaohui Cui Ziqin Yan Zhihao Du |
| author_sort | Ang Xiao |
| collection | DOAJ |
| description | The 2024 aluminum alloys are used in a wide range of industrial applications, and improvement in their formability and serviceability is key in the manufacturing process. Electromagnetic forming (EMF) has proven to be an effective means of improving the formability of aluminum alloys. By combining EMF and heat treatment process, three samples of 2024 aluminum alloy were designed: Sample A (annealing + EMF + solid-solution + aging), Sample B (solid solution + EMF + aging), and Sample C (solid solution + pre-aging + EMF + aging). The effects of three heat treatment regimens on the properties and microstructure of 2024 aluminum alloy were studied by hardness test, intercrystalline corrosion, and exfoliation corrosion, as well as by microscopic characterization techniques including scanning electron microscopy and transmission electron microscopy. The results show that the dislocations-induced deformation could shorten the time to peak aging and led to the increase in peak strength. Sample C exhibited the highest strength and sample A exhibited the highest elongation and corrosion resistance. The microscopic results show that the differences in properties were mainly influenced by the distribution of precipitated phases and the width of the precipitation-free zone. The discrete and coarse grain boundary precipitations make sample A have excellent corrosion resistance. The fine and dense precipitated phases provide good strength for samples B and C, but also reduces the elongation. This research has important implications for rational formulation based on the combination of EMF and heat treatment processes for the fabrication of Al–Cu–Mg alloys. Conclusions: may be made more concise. They should focus on the mechanisms responsible for high strength or corrosion resistance rather than the values obtained that are shown in results. |
| first_indexed | 2024-04-09T21:19:18Z |
| format | Article |
| id | doaj.art-3f5b5e4221f94703bfeb34b079d56e26 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-09T21:19:18Z |
| publishDate | 2023-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-3f5b5e4221f94703bfeb34b079d56e262023-03-28T06:45:52ZengElsevierJournal of Materials Research and Technology2238-78542023-03-012310271038Effect of electromagnetic forming–heat treatment process on mechanical and corrosion properties of 2024 aluminum alloyAng Xiao0Yuhong Lin1Changqing Huang2Xiaohui Cui3Ziqin Yan4Zhihao Du5College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaLight Alloy Research Institute, Central South University, Changsha 410083, ChinaCollege of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; Light Alloy Research Institute, Central South University, Changsha 410083, China; State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, PR ChinaCollege of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; Light Alloy Research Institute, Central South University, Changsha 410083, China; State Key Laboratory of High Performance Complex Manufacturing, Central South University, Changsha 410083, PR China; Corresponding author.College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaCollege of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaThe 2024 aluminum alloys are used in a wide range of industrial applications, and improvement in their formability and serviceability is key in the manufacturing process. Electromagnetic forming (EMF) has proven to be an effective means of improving the formability of aluminum alloys. By combining EMF and heat treatment process, three samples of 2024 aluminum alloy were designed: Sample A (annealing + EMF + solid-solution + aging), Sample B (solid solution + EMF + aging), and Sample C (solid solution + pre-aging + EMF + aging). The effects of three heat treatment regimens on the properties and microstructure of 2024 aluminum alloy were studied by hardness test, intercrystalline corrosion, and exfoliation corrosion, as well as by microscopic characterization techniques including scanning electron microscopy and transmission electron microscopy. The results show that the dislocations-induced deformation could shorten the time to peak aging and led to the increase in peak strength. Sample C exhibited the highest strength and sample A exhibited the highest elongation and corrosion resistance. The microscopic results show that the differences in properties were mainly influenced by the distribution of precipitated phases and the width of the precipitation-free zone. The discrete and coarse grain boundary precipitations make sample A have excellent corrosion resistance. The fine and dense precipitated phases provide good strength for samples B and C, but also reduces the elongation. This research has important implications for rational formulation based on the combination of EMF and heat treatment processes for the fabrication of Al–Cu–Mg alloys. Conclusions: may be made more concise. They should focus on the mechanisms responsible for high strength or corrosion resistance rather than the values obtained that are shown in results.http://www.sciencedirect.com/science/article/pii/S22387854230003642024 Aluminum alloyElectromagnetic formingAgingMicrostructureCorrosion resistance |
| spellingShingle | Ang Xiao Yuhong Lin Changqing Huang Xiaohui Cui Ziqin Yan Zhihao Du Effect of electromagnetic forming–heat treatment process on mechanical and corrosion properties of 2024 aluminum alloy Journal of Materials Research and Technology 2024 Aluminum alloy Electromagnetic forming Aging Microstructure Corrosion resistance |
| title | Effect of electromagnetic forming–heat treatment process on mechanical and corrosion properties of 2024 aluminum alloy |
| title_full | Effect of electromagnetic forming–heat treatment process on mechanical and corrosion properties of 2024 aluminum alloy |
| title_fullStr | Effect of electromagnetic forming–heat treatment process on mechanical and corrosion properties of 2024 aluminum alloy |
| title_full_unstemmed | Effect of electromagnetic forming–heat treatment process on mechanical and corrosion properties of 2024 aluminum alloy |
| title_short | Effect of electromagnetic forming–heat treatment process on mechanical and corrosion properties of 2024 aluminum alloy |
| title_sort | effect of electromagnetic forming heat treatment process on mechanical and corrosion properties of 2024 aluminum alloy |
| topic | 2024 Aluminum alloy Electromagnetic forming Aging Microstructure Corrosion resistance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423000364 |
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