Evolution process of T1 precipitate in Al–Cu–Li–TiC/TiB2 alloy during aging treatment
In this study, particle-reinforced aluminium matrix composites (PRAMCs) of an Al–Cu–Li alloy were prepared using nano-sized TiB₂+TiC particles. The relationship between TiB₂+TiC nanoparticles and T1 precipitates during the ageing process, as well as the influence of TiC + TiB₂ particles on the growt...
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424020519 |
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| author | Jiadong Li Haiyao Wang Yong Li Hongqun Tang Guangming Xu Tongjin Zhang Yilei Wang Xiaoming Qian Chen He |
| author_facet | Jiadong Li Haiyao Wang Yong Li Hongqun Tang Guangming Xu Tongjin Zhang Yilei Wang Xiaoming Qian Chen He |
| author_sort | Jiadong Li |
| collection | DOAJ |
| description | In this study, particle-reinforced aluminium matrix composites (PRAMCs) of an Al–Cu–Li alloy were prepared using nano-sized TiB₂+TiC particles. The relationship between TiB₂+TiC nanoparticles and T1 precipitates during the ageing process, as well as the influence of TiC + TiB₂ particles on the growth process of T1 precipitates during the ageing process, were investigated. The grain sizes of the A0 and A1 samples were found to be 249.89 μm and 86.42 μm, respectively. The dislocation density is greater in the deformed A1 sample. The coefficient of thermal expansion (CTE) effect generated by TiC and TiB₂ particles stimulates the precipitation process of T1 precipitates. The A1 alloy reached the peak ageing state in a shorter time and yielded a greater number of T1 precipitates. The precipitation process of T1 precipitate is: SSSS→T1P→T1. The transition from T1P (face-centered cubic, FCC) to T1 (hexagonal close packing, HCP) entails a modification in the order of packing. The recently formed T1P precipitate is attached to the established T1 precipitate and extends along the c-axis through the shared copper-rich layer that has formed on both sides of the mature T1 precipitate. The mechanical properties of sample A1 are optimal at T = 22h, with a yield strength, tensile strength, and elongation of 520 MPa, 553 MPa, and 8.2%, respectively. In comparison to the A0 sample, the yield strength and tensile strength exhibited an increase of 5.05% and 5.13%, respectively. |
| format | Article |
| id | doaj-art-1f8a0951d9864989819cf164777ea549 |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-1f8a0951d9864989819cf164777ea5492025-08-20T01:57:24ZengElsevierJournal of Materials Research and Technology2238-78542024-11-013354855910.1016/j.jmrt.2024.09.046Evolution process of T1 precipitate in Al–Cu–Li–TiC/TiB2 alloy during aging treatmentJiadong Li0Haiyao Wang1Yong Li2Hongqun Tang3Guangming Xu4Tongjin Zhang5Yilei Wang6Xiaoming Qian7Chen He8State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, China; Corresponding author.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, China; Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, China; Corresponding author. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, China.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, China; Guangxi Advanced Aluminum Processing Innovation Center Co.LTD, Nanning, 530007, ChinaState Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, Nanning, 530004, ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, ChinaNational Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao, 066004, ChinaShenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110169, ChinaIn this study, particle-reinforced aluminium matrix composites (PRAMCs) of an Al–Cu–Li alloy were prepared using nano-sized TiB₂+TiC particles. The relationship between TiB₂+TiC nanoparticles and T1 precipitates during the ageing process, as well as the influence of TiC + TiB₂ particles on the growth process of T1 precipitates during the ageing process, were investigated. The grain sizes of the A0 and A1 samples were found to be 249.89 μm and 86.42 μm, respectively. The dislocation density is greater in the deformed A1 sample. The coefficient of thermal expansion (CTE) effect generated by TiC and TiB₂ particles stimulates the precipitation process of T1 precipitates. The A1 alloy reached the peak ageing state in a shorter time and yielded a greater number of T1 precipitates. The precipitation process of T1 precipitate is: SSSS→T1P→T1. The transition from T1P (face-centered cubic, FCC) to T1 (hexagonal close packing, HCP) entails a modification in the order of packing. The recently formed T1P precipitate is attached to the established T1 precipitate and extends along the c-axis through the shared copper-rich layer that has formed on both sides of the mature T1 precipitate. The mechanical properties of sample A1 are optimal at T = 22h, with a yield strength, tensile strength, and elongation of 520 MPa, 553 MPa, and 8.2%, respectively. In comparison to the A0 sample, the yield strength and tensile strength exhibited an increase of 5.05% and 5.13%, respectively.http://www.sciencedirect.com/science/article/pii/S2238785424020519Al-Cu-Li alloyPrecipitationTiB2+TiC particlesMechanical properties |
| spellingShingle | Jiadong Li Haiyao Wang Yong Li Hongqun Tang Guangming Xu Tongjin Zhang Yilei Wang Xiaoming Qian Chen He Evolution process of T1 precipitate in Al–Cu–Li–TiC/TiB2 alloy during aging treatment Journal of Materials Research and Technology Al-Cu-Li alloy Precipitation TiB2+TiC particles Mechanical properties |
| title | Evolution process of T1 precipitate in Al–Cu–Li–TiC/TiB2 alloy during aging treatment |
| title_full | Evolution process of T1 precipitate in Al–Cu–Li–TiC/TiB2 alloy during aging treatment |
| title_fullStr | Evolution process of T1 precipitate in Al–Cu–Li–TiC/TiB2 alloy during aging treatment |
| title_full_unstemmed | Evolution process of T1 precipitate in Al–Cu–Li–TiC/TiB2 alloy during aging treatment |
| title_short | Evolution process of T1 precipitate in Al–Cu–Li–TiC/TiB2 alloy during aging treatment |
| title_sort | evolution process of t1 precipitate in al cu li tic tib2 alloy during aging treatment |
| topic | Al-Cu-Li alloy Precipitation TiB2+TiC particles Mechanical properties |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424020519 |
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