| Effect of Natural Aging on Precipitation Strengthening Behaviors in Al-Mg-Si Alloy | |
| Cui, Zhenjie1,2,3; Jiang, Haichang1,3,4; Zhang, Duo1,3; Song, Yuanyuan1,3; Yan, Desheng1,3; Rong, Lijian1,3 | |
| Corresponding Author | Jiang, Haichang(hcjiang@imr.ac.cn) ; Rong, Lijian(ljrong@imr.ac.cn) |
| 2022-03-01 | |
| Source Publication | METALS
 |
| Volume | 12Issue:3Pages:10 |
| Abstract | Natural aging (NA) is unavoidable in Al-Mg-Si alloys during actual manufacturing. Revealing the reasons for the alloy strength reduction caused by the negative NA effect is of great significance to research and practice. In this work, atom probe tomography (APT) and transmission electron microscopy (TEM) were employed simultaneously to study the effect of NA on precipitates and their contributions to the strength of Al-Mg-Si alloys. It was found that the numerous clusters formed after significant NA are unstable and will dissolve into the matrix during initial AA. However, a few stable clusters are undissolved and will result in abnormal growth of beta '', which then transforms to beta '. Due to the decrease of nucleation sites resulting from the abnormal growth of precipitates, more solute atoms remain in the matrix. The calculation results show that the strengthening of the solid solution atoms is much smaller than that of large-sized beta ', which is much less than that of fine beta ''. Therefore, lengthy NA causes a significant reduction in AA strength of the Al-Mg-Si alloy. |
| Keyword | Al-Mg-Si alloy natural aging clusters precipitates atom probe tomography |
| Funding Organization | National Key R&D Program of China ; Strategic Priority Program of the Chinese Academy of Sciences ; Shenyang Key R&D and technology transfer program |
| DOI | 10.3390/met12030470 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R&D Program of China[2016YFB1200602] ; Strategic Priority Program of the Chinese Academy of Sciences[XDB22020000] ; Shenyang Key R&D and technology transfer program[Z19-1-004] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000774092800001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173060 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Jiang, Haichang; Rong, Lijian |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Shandong Key Lab Adv Aluminum Mat & Technol, Binzhou 256606, Peoples R China |
| Recommended Citation GB/T 7714 | Cui, Zhenjie,Jiang, Haichang,Zhang, Duo,et al. Effect of Natural Aging on Precipitation Strengthening Behaviors in Al-Mg-Si Alloy[J]. METALS,2022,12(3):10. |
| APA | Cui, Zhenjie,Jiang, Haichang,Zhang, Duo,Song, Yuanyuan,Yan, Desheng,&Rong, Lijian.(2022).Effect of Natural Aging on Precipitation Strengthening Behaviors in Al-Mg-Si Alloy.METALS,12(3),10. |
| MLA | Cui, Zhenjie,et al."Effect of Natural Aging on Precipitation Strengthening Behaviors in Al-Mg-Si Alloy".METALS 12.3(2022):10. |
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