Quantitative study on the correlation between microstructure and mechanical properties of additive friction stir deposited 6061-T6 Al-Mg-Si alloy
Additive friction stir deposition (AFSD) technology is attractive for its ability to create freeform and fully dense structures without melting and solidification. Hence, AFSD is an alternative to fusion-based additive manufacturing technology. However, the quantitative relationship between mechanic...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423016253 |
| _version_ | 1827867591092207616 |
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| author | Gang Chen Kai Wu Yu Wang Yu Sun Xiaohan Wang Zhixiong Zhu Fengfeng Hu |
| author_facet | Gang Chen Kai Wu Yu Wang Yu Sun Xiaohan Wang Zhixiong Zhu Fengfeng Hu |
| author_sort | Gang Chen |
| collection | DOAJ |
| description | Additive friction stir deposition (AFSD) technology is attractive for its ability to create freeform and fully dense structures without melting and solidification. Hence, AFSD is an alternative to fusion-based additive manufacturing technology. However, the quantitative relationship between mechanical properties and microstructure has not been established yet. The purpose of the research is to establish a quantitative relationship between the microstructure and mechanical properties of AFSD-ed 6061-T6 aluminum alloy. In this study, 6061-T6 aluminum alloy feedstock was processed using AFSD technology and then subjected to post-deposited heat treatment (PDHT). The microstructure evolution and mechanical properties of the feedstock, as-deposited and PDHT-ed 6061-T6 aluminum alloy specimens, were investigated for a comparative study. The microstructure was analyzed using electron backscatter diffraction (EBSD), X-ray diffraction (XRD), and transmission electron microscopy (TEM). Hardness testing and tensile testing were conducted for the feedstock, as-deposited, and PDHT-ed specimens. The strengthening mechanisms were discussed. It was found that precipitation strengthening was the main strengthening mechanism for feedstock and PDHT-ed specimens, which contributed to 69% and 83% of the total yield strength, respectively. Whereas grain refinement strengthening was the main strengthening mechanism for the as-deposited specimen, which occupied 68% of the total yield strength. Finally, the relationship between microstructure and mechanical properties of additive friction stir-deposited 6061-T6 Al–Mg–Si alloy was quantified. |
| first_indexed | 2024-03-12T15:19:39Z |
| format | Article |
| id | doaj.art-2cd57c3e58dd43dbac5a8fe813689f6f |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-12T15:19:39Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-2cd57c3e58dd43dbac5a8fe813689f6f2023-08-11T05:34:31ZengElsevierJournal of Materials Research and Technology2238-78542023-07-012567256736Quantitative study on the correlation between microstructure and mechanical properties of additive friction stir deposited 6061-T6 Al-Mg-Si alloyGang Chen0Kai Wu1Yu Wang2Yu Sun3Xiaohan Wang4Zhixiong Zhu5Fengfeng Hu6School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China; Corresponding author.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaShanghai Aerospace Equipment Manufacturer Co.Ltd., Shanghai, ChinaAerospace Engineering Equipment (Suzhou) Co.Ltd., Suzhou, ChinaAerospace Engineering Equipment (Suzhou) Co.Ltd., Suzhou, ChinaAdditive friction stir deposition (AFSD) technology is attractive for its ability to create freeform and fully dense structures without melting and solidification. Hence, AFSD is an alternative to fusion-based additive manufacturing technology. However, the quantitative relationship between mechanical properties and microstructure has not been established yet. The purpose of the research is to establish a quantitative relationship between the microstructure and mechanical properties of AFSD-ed 6061-T6 aluminum alloy. In this study, 6061-T6 aluminum alloy feedstock was processed using AFSD technology and then subjected to post-deposited heat treatment (PDHT). The microstructure evolution and mechanical properties of the feedstock, as-deposited and PDHT-ed 6061-T6 aluminum alloy specimens, were investigated for a comparative study. The microstructure was analyzed using electron backscatter diffraction (EBSD), X-ray diffraction (XRD), and transmission electron microscopy (TEM). Hardness testing and tensile testing were conducted for the feedstock, as-deposited, and PDHT-ed specimens. The strengthening mechanisms were discussed. It was found that precipitation strengthening was the main strengthening mechanism for feedstock and PDHT-ed specimens, which contributed to 69% and 83% of the total yield strength, respectively. Whereas grain refinement strengthening was the main strengthening mechanism for the as-deposited specimen, which occupied 68% of the total yield strength. Finally, the relationship between microstructure and mechanical properties of additive friction stir-deposited 6061-T6 Al–Mg–Si alloy was quantified.http://www.sciencedirect.com/science/article/pii/S2238785423016253Additive friction stir deposition6061 aluminum alloyPrecipitation strengtheningGrain refinement strengthening |
| spellingShingle | Gang Chen Kai Wu Yu Wang Yu Sun Xiaohan Wang Zhixiong Zhu Fengfeng Hu Quantitative study on the correlation between microstructure and mechanical properties of additive friction stir deposited 6061-T6 Al-Mg-Si alloy Journal of Materials Research and Technology Additive friction stir deposition 6061 aluminum alloy Precipitation strengthening Grain refinement strengthening |
| title | Quantitative study on the correlation between microstructure and mechanical properties of additive friction stir deposited 6061-T6 Al-Mg-Si alloy |
| title_full | Quantitative study on the correlation between microstructure and mechanical properties of additive friction stir deposited 6061-T6 Al-Mg-Si alloy |
| title_fullStr | Quantitative study on the correlation between microstructure and mechanical properties of additive friction stir deposited 6061-T6 Al-Mg-Si alloy |
| title_full_unstemmed | Quantitative study on the correlation between microstructure and mechanical properties of additive friction stir deposited 6061-T6 Al-Mg-Si alloy |
| title_short | Quantitative study on the correlation between microstructure and mechanical properties of additive friction stir deposited 6061-T6 Al-Mg-Si alloy |
| title_sort | quantitative study on the correlation between microstructure and mechanical properties of additive friction stir deposited 6061 t6 al mg si alloy |
| topic | Additive friction stir deposition 6061 aluminum alloy Precipitation strengthening Grain refinement strengthening |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423016253 |
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