Effect of variable-rate non-isothermal aging on microstructure, mechanical properties, and corrosion behavior of Al–Zn–Mg alloy
A comprehensive study was conducted to evaluate the effects of non-isothermal aging (NIA) processes with varying rates on the microstructure, mechanical properties, and corrosion resistance of an Al-7.6Zn-2.4Mg-0.2Cu-0.2Cr-0.5Mn-0.15Zr alloy. Compared to traditional T6 and RRA processes, the NIA pro...
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Elsevier
2025-05-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425013870 |
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| author | Donghui Yang Haitao Zhang Xu Li Jingong Qin Zibin Wu Cheng Guo Ke Qin Hiromi Nagaumi Ping Wang Bingjiao Yu Ziping Li |
| author_facet | Donghui Yang Haitao Zhang Xu Li Jingong Qin Zibin Wu Cheng Guo Ke Qin Hiromi Nagaumi Ping Wang Bingjiao Yu Ziping Li |
| author_sort | Donghui Yang |
| collection | DOAJ |
| description | A comprehensive study was conducted to evaluate the effects of non-isothermal aging (NIA) processes with varying rates on the microstructure, mechanical properties, and corrosion resistance of an Al-7.6Zn-2.4Mg-0.2Cu-0.2Cr-0.5Mn-0.15Zr alloy. Compared to traditional T6 and RRA processes, the NIA process offers unique advantages in optimizing alloy performance. The N10-30 process achieves a superior balance between strength and ductility, with a yield strength of 533 MPa and an elongation of 12.7 %, while reducing the aging time by 66 % compared to T6, resulting in significant energy savings and enhanced practicality for structural applications. The N30-10 process exhibits excellent corrosion resistance due to the discontinuous distribution of grain boundary precipitates and the formation of an optimal precipitation-free zone. This study demonstrates that non-isothermal aging processes with variable rates enable improvements in mechanical properties and corrosion resistance, along with significant reductions in both aging time and energy expenditure, thus contributing valuable knowledge for the advancement of 7xxx alloys. |
| format | Article |
| id | doaj-art-bf5a4a5de5274d8995e3bdb61a1efda2 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-bf5a4a5de5274d8995e3bdb61a1efda22025-08-20T03:55:22ZengElsevierJournal of Materials Research and Technology2238-78542025-05-0136102521026610.1016/j.jmrt.2025.05.231Effect of variable-rate non-isothermal aging on microstructure, mechanical properties, and corrosion behavior of Al–Zn–Mg alloyDonghui Yang0Haitao Zhang1Xu Li2Jingong Qin3Zibin Wu4Cheng Guo5Ke Qin6Hiromi Nagaumi7Ping Wang8Bingjiao Yu9Ziping Li10Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110000, Liaoning, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110000, Liaoning, China; Corresponding author.Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110000, Liaoning, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110000, Liaoning, ChinaHigh-Performance Metal Structural Materials Research Institute, Soochow University, Suzhou, 215021, Jiangsu, China; Corresponding author.College of Mechanical Engineering, Yanshan University, Qinhuangdao, 066004, Hebei, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110000, Liaoning, ChinaHigh-Performance Metal Structural Materials Research Institute, Soochow University, Suzhou, 215021, Jiangsu, ChinaKey Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110000, Liaoning, ChinaShandong Weiqiao Lightweight Materials Co., Ltd., Binzhou, 256200, Shandong, ChinaShandong Weiqiao Lightweight Materials Co., Ltd., Binzhou, 256200, Shandong, ChinaA comprehensive study was conducted to evaluate the effects of non-isothermal aging (NIA) processes with varying rates on the microstructure, mechanical properties, and corrosion resistance of an Al-7.6Zn-2.4Mg-0.2Cu-0.2Cr-0.5Mn-0.15Zr alloy. Compared to traditional T6 and RRA processes, the NIA process offers unique advantages in optimizing alloy performance. The N10-30 process achieves a superior balance between strength and ductility, with a yield strength of 533 MPa and an elongation of 12.7 %, while reducing the aging time by 66 % compared to T6, resulting in significant energy savings and enhanced practicality for structural applications. The N30-10 process exhibits excellent corrosion resistance due to the discontinuous distribution of grain boundary precipitates and the formation of an optimal precipitation-free zone. This study demonstrates that non-isothermal aging processes with variable rates enable improvements in mechanical properties and corrosion resistance, along with significant reductions in both aging time and energy expenditure, thus contributing valuable knowledge for the advancement of 7xxx alloys.http://www.sciencedirect.com/science/article/pii/S2238785425013870Al–Zn–Mg alloysNon-isothermal agingMechanical propertiesCorrosion resistancePrecipitation behavior |
| spellingShingle | Donghui Yang Haitao Zhang Xu Li Jingong Qin Zibin Wu Cheng Guo Ke Qin Hiromi Nagaumi Ping Wang Bingjiao Yu Ziping Li Effect of variable-rate non-isothermal aging on microstructure, mechanical properties, and corrosion behavior of Al–Zn–Mg alloy Journal of Materials Research and Technology Al–Zn–Mg alloys Non-isothermal aging Mechanical properties Corrosion resistance Precipitation behavior |
| title | Effect of variable-rate non-isothermal aging on microstructure, mechanical properties, and corrosion behavior of Al–Zn–Mg alloy |
| title_full | Effect of variable-rate non-isothermal aging on microstructure, mechanical properties, and corrosion behavior of Al–Zn–Mg alloy |
| title_fullStr | Effect of variable-rate non-isothermal aging on microstructure, mechanical properties, and corrosion behavior of Al–Zn–Mg alloy |
| title_full_unstemmed | Effect of variable-rate non-isothermal aging on microstructure, mechanical properties, and corrosion behavior of Al–Zn–Mg alloy |
| title_short | Effect of variable-rate non-isothermal aging on microstructure, mechanical properties, and corrosion behavior of Al–Zn–Mg alloy |
| title_sort | effect of variable rate non isothermal aging on microstructure mechanical properties and corrosion behavior of al zn mg alloy |
| topic | Al–Zn–Mg alloys Non-isothermal aging Mechanical properties Corrosion resistance Precipitation behavior |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425013870 |
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