Twinning and stacking fault-induced precipitation in an aluminum alloy
The precipitation process in Al alloys has been an attractive phenomenon for engineering alloys. In this study, the Al 6082 alloys processed via forging, followed by a heat treatment procedure consisting of solution treatment at 530 °C for 3 h, and an aging process at 175 °C for 8 h. Detailed precip...
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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/S2238785424030266 |
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| author | Yabo Fu Vahid Yousefi Mehr Mohammad Reza Toroghinejad Xizhang Chen Jinchuan Jie Shijie Zhu |
| author_facet | Yabo Fu Vahid Yousefi Mehr Mohammad Reza Toroghinejad Xizhang Chen Jinchuan Jie Shijie Zhu |
| author_sort | Yabo Fu |
| collection | DOAJ |
| description | The precipitation process in Al alloys has been an attractive phenomenon for engineering alloys. In this study, the Al 6082 alloys processed via forging, followed by a heat treatment procedure consisting of solution treatment at 530 °C for 3 h, and an aging process at 175 °C for 8 h. Detailed precipitation investigations have been conducted using high-resolution TEM. The results show that the Al, Mn, and Si elements segregate to form precipitates with complex crystal structures at different locations such as triple junctions. Also, two major scenarios for determining precipitation formation during heat treatment are proposed. The single atom jump along the interface between the precipitate and the matrix is evidenced by the creation of a jagged interface. The formation of partial dislocations and the resulting staking faults are also suggested as another mechanism in precipitates growth. The creation of twinning adjacent to precipitates and precipitates increased in stacking fault as the atomic layers transformed into closely packed precipitates are observed in sequence. |
| format | Article |
| id | doaj-art-9c125e7fde0045338dd0f4f5f281569f |
| 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-9c125e7fde0045338dd0f4f5f281569f2025-01-19T06:25:52ZengElsevierJournal of Materials Research and Technology2238-78542025-01-013421272132Twinning and stacking fault-induced precipitation in an aluminum alloyYabo Fu0Vahid Yousefi Mehr1Mohammad Reza Toroghinejad2Xizhang Chen3Jinchuan Jie4Shijie Zhu5Zhejiang Key Laboratory for Island Green Energy and New Materials, School of Materials Science and Engineering, Taizhou University, Taizhou, 318000, Zhejiang, PR China; Corresponding author.Department of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, IranDepartment of Materials Engineering, Isfahan University of Technology, Isfahan, 84156-83111, IranSchool of Mechanical and Electrical Engineering, Wenzhou University, Wenzhou, 325035, Zhejiang, PR China; Corresponding author.School of Materials Science and Engineering, Dalian University of Technology, Dalian, 116024, Liaoning, PR ChinaDepartment of Intelligent Mechanical Engineering, Fukuoka Institute of Technology, Fukuoka, 811-0295, JapanThe precipitation process in Al alloys has been an attractive phenomenon for engineering alloys. In this study, the Al 6082 alloys processed via forging, followed by a heat treatment procedure consisting of solution treatment at 530 °C for 3 h, and an aging process at 175 °C for 8 h. Detailed precipitation investigations have been conducted using high-resolution TEM. The results show that the Al, Mn, and Si elements segregate to form precipitates with complex crystal structures at different locations such as triple junctions. Also, two major scenarios for determining precipitation formation during heat treatment are proposed. The single atom jump along the interface between the precipitate and the matrix is evidenced by the creation of a jagged interface. The formation of partial dislocations and the resulting staking faults are also suggested as another mechanism in precipitates growth. The creation of twinning adjacent to precipitates and precipitates increased in stacking fault as the atomic layers transformed into closely packed precipitates are observed in sequence.http://www.sciencedirect.com/science/article/pii/S2238785424030266PrecipitationsTwinningStacking faultsAluminum-based alloysTEM study |
| spellingShingle | Yabo Fu Vahid Yousefi Mehr Mohammad Reza Toroghinejad Xizhang Chen Jinchuan Jie Shijie Zhu Twinning and stacking fault-induced precipitation in an aluminum alloy Journal of Materials Research and Technology Precipitations Twinning Stacking faults Aluminum-based alloys TEM study |
| title | Twinning and stacking fault-induced precipitation in an aluminum alloy |
| title_full | Twinning and stacking fault-induced precipitation in an aluminum alloy |
| title_fullStr | Twinning and stacking fault-induced precipitation in an aluminum alloy |
| title_full_unstemmed | Twinning and stacking fault-induced precipitation in an aluminum alloy |
| title_short | Twinning and stacking fault-induced precipitation in an aluminum alloy |
| title_sort | twinning and stacking fault induced precipitation in an aluminum alloy |
| topic | Precipitations Twinning Stacking faults Aluminum-based alloys TEM study |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424030266 |
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