Effect of Pre-Deformation on the Microstructure and Precipitation Behavior of Spray-Formed 7xxx Series Aluminum Alloys
This study investigates the effect of pre-deformation on the microstructure and precipitation behavior of spray-formed 7xxx series aluminum alloys. Pre-deformation introduces a high density of dislocations, increasing the proportion of low-angle grain boundaries from 40% to 66%. After solution treat...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/15/4/365 |
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| author | Huiying Hou Lei Zhang Shuohao Xing Hongchao Zhai Shule Xia Long Zhai Zhijie Wang Sha Liu |
| author_facet | Huiying Hou Lei Zhang Shuohao Xing Hongchao Zhai Shule Xia Long Zhai Zhijie Wang Sha Liu |
| author_sort | Huiying Hou |
| collection | DOAJ |
| description | This study investigates the effect of pre-deformation on the microstructure and precipitation behavior of spray-formed 7xxx series aluminum alloys. Pre-deformation introduces a high density of dislocations, increasing the proportion of low-angle grain boundaries from 40% to 66%. After solution treatment at 580 °C, grain size significantly increases, ranging from 35 µm to 315 µm, with a higher proportion of larger grains observed in pre-deformed samples. Subsequent aging treatment refines the microstructure, resulting in grain sizes between 30 µm and 270 µm, and leads to a more uniform precipitate distribution. |
| format | Article |
| id | doaj-art-a6bb2171631e4c75b4919b4de09a1eb5 |
| institution | OA Journals |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-a6bb2171631e4c75b4919b4de09a1eb52025-08-20T02:18:19ZengMDPI AGMetals2075-47012025-03-0115436510.3390/met15040365Effect of Pre-Deformation on the Microstructure and Precipitation Behavior of Spray-Formed 7xxx Series Aluminum AlloysHuiying Hou0Lei Zhang1Shuohao Xing2Hongchao Zhai3Shule Xia4Long Zhai5Zhijie Wang6Sha Liu7State Key Lab of Metastable Materials Science & Technology, College of Materials Science & Engineering, Yanshan University, Qinhuangdao 066004, ChinaState Key Lab of Metastable Materials Science & Technology, College of Materials Science & Engineering, Yanshan University, Qinhuangdao 066004, ChinaState Key Lab of Metastable Materials Science & Technology, College of Materials Science & Engineering, Yanshan University, Qinhuangdao 066004, ChinaState Key Lab of Metastable Materials Science & Technology, College of Materials Science & Engineering, Yanshan University, Qinhuangdao 066004, ChinaCITIC Dicastal Co., Ltd., Qinhuangdao 066004, ChinaCITIC Dicastal Co., Ltd., Qinhuangdao 066004, ChinaSchool of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, ChinaState Key Lab of Metastable Materials Science & Technology, College of Materials Science & Engineering, Yanshan University, Qinhuangdao 066004, ChinaThis study investigates the effect of pre-deformation on the microstructure and precipitation behavior of spray-formed 7xxx series aluminum alloys. Pre-deformation introduces a high density of dislocations, increasing the proportion of low-angle grain boundaries from 40% to 66%. After solution treatment at 580 °C, grain size significantly increases, ranging from 35 µm to 315 µm, with a higher proportion of larger grains observed in pre-deformed samples. Subsequent aging treatment refines the microstructure, resulting in grain sizes between 30 µm and 270 µm, and leads to a more uniform precipitate distribution.https://www.mdpi.com/2075-4701/15/4/3657xxx series aluminum alloypre-deformationdislocation induced heterogeneous nucleationprecipitate strengthening |
| spellingShingle | Huiying Hou Lei Zhang Shuohao Xing Hongchao Zhai Shule Xia Long Zhai Zhijie Wang Sha Liu Effect of Pre-Deformation on the Microstructure and Precipitation Behavior of Spray-Formed 7xxx Series Aluminum Alloys Metals 7xxx series aluminum alloy pre-deformation dislocation induced heterogeneous nucleation precipitate strengthening |
| title | Effect of Pre-Deformation on the Microstructure and Precipitation Behavior of Spray-Formed 7xxx Series Aluminum Alloys |
| title_full | Effect of Pre-Deformation on the Microstructure and Precipitation Behavior of Spray-Formed 7xxx Series Aluminum Alloys |
| title_fullStr | Effect of Pre-Deformation on the Microstructure and Precipitation Behavior of Spray-Formed 7xxx Series Aluminum Alloys |
| title_full_unstemmed | Effect of Pre-Deformation on the Microstructure and Precipitation Behavior of Spray-Formed 7xxx Series Aluminum Alloys |
| title_short | Effect of Pre-Deformation on the Microstructure and Precipitation Behavior of Spray-Formed 7xxx Series Aluminum Alloys |
| title_sort | effect of pre deformation on the microstructure and precipitation behavior of spray formed 7xxx series aluminum alloys |
| topic | 7xxx series aluminum alloy pre-deformation dislocation induced heterogeneous nucleation precipitate strengthening |
| url | https://www.mdpi.com/2075-4701/15/4/365 |
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