Improvements of microstructure and mechanical properties of wire-arc directed energy deposition 2024 aluminum alloy after adding TiC nanoparticles
To address issues such as grain coarsening, high porosity, and poor mechanical properties that commonly occur in high-strength 2024 aluminum alloy (AA2024) during directed energy deposition using an electric arc (DED-A), this work proposes a strategy of adding TiC nanoparticles to the AA2024 welding...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-12-01
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| Series: | Virtual and Physical Prototyping |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/17452759.2024.2442489 |
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| author | Xiaoyu Cai Dongyuan Liu Bolun Dong Sanbao Lin |
| author_facet | Xiaoyu Cai Dongyuan Liu Bolun Dong Sanbao Lin |
| author_sort | Xiaoyu Cai |
| collection | DOAJ |
| description | To address issues such as grain coarsening, high porosity, and poor mechanical properties that commonly occur in high-strength 2024 aluminum alloy (AA2024) during directed energy deposition using an electric arc (DED-A), this work proposes a strategy of adding TiC nanoparticles to the AA2024 welding wire for DED-A and reveals the mechanism of TiC nanoparticles modification. AA2024 and TiCP/AA2024 composite were fabricated by DED-A. By adding TiC nanoparticles, the average grain diameter of the as-deposited TiCP/AA2024 composites considerably decreases from 65.4 μm to 16.4 μm. TiC nanoparticles refine the grains by promoting nucleation and inhibiting grain growth. Correspondingly, the mechanical properties of the as-deposited TiCP/AA2024 have been significantly improved: the horizontal tensile strength, yield strength, and elongation are 304 , 174 MPa, and 9.5%, respectively, which represent increases of 75%, 70%, and 164% compared to AA2024, and the tensile strength, yield strength, and elongation in the vertical direction are 287 MPa, 165 MPa, and 9.9%, respectively, with no significant anisotropy observed. |
| format | Article |
| id | doaj-art-1b5bb3f077d44d68b7a720e874b24d26 |
| institution | Kabale University |
| issn | 1745-2759 1745-2767 |
| language | English |
| publishDate | 2025-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Virtual and Physical Prototyping |
| spelling | doaj-art-1b5bb3f077d44d68b7a720e874b24d262025-01-05T18:13:52ZengTaylor & Francis GroupVirtual and Physical Prototyping1745-27591745-27672025-12-0120110.1080/17452759.2024.2442489Improvements of microstructure and mechanical properties of wire-arc directed energy deposition 2024 aluminum alloy after adding TiC nanoparticlesXiaoyu Cai0Dongyuan Liu1Bolun Dong2Sanbao Lin3State Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin, People’s Republic of ChinaState Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin, People’s Republic of ChinaState Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin, People’s Republic of ChinaState Key Laboratory of Precision Welding & Joining of Materials and Structures, Harbin Institute of Technology, Harbin, People’s Republic of ChinaTo address issues such as grain coarsening, high porosity, and poor mechanical properties that commonly occur in high-strength 2024 aluminum alloy (AA2024) during directed energy deposition using an electric arc (DED-A), this work proposes a strategy of adding TiC nanoparticles to the AA2024 welding wire for DED-A and reveals the mechanism of TiC nanoparticles modification. AA2024 and TiCP/AA2024 composite were fabricated by DED-A. By adding TiC nanoparticles, the average grain diameter of the as-deposited TiCP/AA2024 composites considerably decreases from 65.4 μm to 16.4 μm. TiC nanoparticles refine the grains by promoting nucleation and inhibiting grain growth. Correspondingly, the mechanical properties of the as-deposited TiCP/AA2024 have been significantly improved: the horizontal tensile strength, yield strength, and elongation are 304 , 174 MPa, and 9.5%, respectively, which represent increases of 75%, 70%, and 164% compared to AA2024, and the tensile strength, yield strength, and elongation in the vertical direction are 287 MPa, 165 MPa, and 9.9%, respectively, with no significant anisotropy observed.https://www.tandfonline.com/doi/10.1080/17452759.2024.2442489Wire-arc directed energy deposition2024 aluminum alloyTiC nanoparticlesmicrostructuremechanical properties |
| spellingShingle | Xiaoyu Cai Dongyuan Liu Bolun Dong Sanbao Lin Improvements of microstructure and mechanical properties of wire-arc directed energy deposition 2024 aluminum alloy after adding TiC nanoparticles Virtual and Physical Prototyping Wire-arc directed energy deposition 2024 aluminum alloy TiC nanoparticles microstructure mechanical properties |
| title | Improvements of microstructure and mechanical properties of wire-arc directed energy deposition 2024 aluminum alloy after adding TiC nanoparticles |
| title_full | Improvements of microstructure and mechanical properties of wire-arc directed energy deposition 2024 aluminum alloy after adding TiC nanoparticles |
| title_fullStr | Improvements of microstructure and mechanical properties of wire-arc directed energy deposition 2024 aluminum alloy after adding TiC nanoparticles |
| title_full_unstemmed | Improvements of microstructure and mechanical properties of wire-arc directed energy deposition 2024 aluminum alloy after adding TiC nanoparticles |
| title_short | Improvements of microstructure and mechanical properties of wire-arc directed energy deposition 2024 aluminum alloy after adding TiC nanoparticles |
| title_sort | improvements of microstructure and mechanical properties of wire arc directed energy deposition 2024 aluminum alloy after adding tic nanoparticles |
| topic | Wire-arc directed energy deposition 2024 aluminum alloy TiC nanoparticles microstructure mechanical properties |
| url | https://www.tandfonline.com/doi/10.1080/17452759.2024.2442489 |
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