| Microstructural evolution, precipitation and mechanical properties of ultrafine-grained and coarse-grained 2024 aluminum alloys fabricated by powder metallurgy | |
| Mu, D. K. Q.1,2; Jiang, Z. H.1,2; Zhang, Z.1,2; Liang, J. M.1,2; Wang, J.1,2; Zhang, D. L.1,2,3; Xian, Q. G.4 | |
| Corresponding Author | Liang, J. M.(jmliang@sjtu.edu.cn) |
| 2022-01-26 | |
| Source Publication | JOURNAL OF MATERIALS RESEARCH
 |
| ISSN | 0884-2914 |
| Pages | 13 |
| Abstract | Ultrafine-grained (UFG) and coarse-grained (CG) AA2024 samples are prepared by powder metallurgy process involving high-energy ball milling, spark plasma sintering and hot extrusion, as well as subsequent T6 heat treatment. The microstructural evolution, precipitation behavior, and tensile mechanical properties of the samples are investigated. During T6 heat treatment, recrystallization and grain growth occur, leading to a grain coarsening in the CG2024 sample and a slight grain refinement in the UFG2024 sample. After T6 heat treatment, the UFG2024 sample demonstrated an accelerated precipitation behavior with the formation of lens-shaped and round S' phases due to the high density of dislocations and grain boundaries. This consequently resulted in an improvement in both strength and tensile ductility. Based on the analysis, nanoparticle strengthening and grain boundary strengthening make the major contributions to the improved yield strength of the UFG2024-HT sample. |
| Funding Organization | National Natural Science Foundation of China ; SJTU Global Strategic Partnership Fund (2019 SJTU-UNSW) ; National Science and Technology Major Project |
| DOI | 10.1557/s43578-022-00490-9 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[51971143] ; National Natural Science Foundation of China[52074183] ; SJTU Global Strategic Partnership Fund (2019 SJTU-UNSW) ; National Science and Technology Major Project[2017-VI-0013-0085] |
| WOS Research Area | Materials Science |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000750863700001 |
| Publisher | SPRINGER HEIDELBERG |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/173516 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liang, J. M. |
| Affiliation | 1.Shanghai Jiao Tong Univ, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai 200240, Peoples R China 2.Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China 3.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Mu, D. K. Q.,Jiang, Z. H.,Zhang, Z.,et al. Microstructural evolution, precipitation and mechanical properties of ultrafine-grained and coarse-grained 2024 aluminum alloys fabricated by powder metallurgy[J]. JOURNAL OF MATERIALS RESEARCH,2022:13. |
| APA | Mu, D. K. Q..,Jiang, Z. H..,Zhang, Z..,Liang, J. M..,Wang, J..,...&Xian, Q. G..(2022).Microstructural evolution, precipitation and mechanical properties of ultrafine-grained and coarse-grained 2024 aluminum alloys fabricated by powder metallurgy.JOURNAL OF MATERIALS RESEARCH,13. |
| MLA | Mu, D. K. Q.,et al."Microstructural evolution, precipitation and mechanical properties of ultrafine-grained and coarse-grained 2024 aluminum alloys fabricated by powder metallurgy".JOURNAL OF MATERIALS RESEARCH (2022):13. |
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