Laser-beam powder bed fusion of Al–Fe–Cu alloy to achieve high strength and thermal conductivity
Laser-beam powder bed fusion (PBF-LB) technique was used to produce an Al–2.5 %Fe–2 %Cu ternary alloy, featuring a two-phase eutectic composition of α-Al/Al23CuFe4 in non-equilibrium solidification, as determined by thermodynamic calculations. The specimen manufactured by PBF-LB exhibited a high ten...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-02-01
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| Series: | Additive Manufacturing Letters |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772369023000713 |
| _version_ | 1797357785124438016 |
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| author | Yue Cheng Takanobu Miyawaki Wenyuan Wang Naoki Takata Asuka Suzuki Makoto Kobashi Masaki Kato |
| author_facet | Yue Cheng Takanobu Miyawaki Wenyuan Wang Naoki Takata Asuka Suzuki Makoto Kobashi Masaki Kato |
| author_sort | Yue Cheng |
| collection | DOAJ |
| description | Laser-beam powder bed fusion (PBF-LB) technique was used to produce an Al–2.5 %Fe–2 %Cu ternary alloy, featuring a two-phase eutectic composition of α-Al/Al23CuFe4 in non-equilibrium solidification, as determined by thermodynamic calculations. The specimen manufactured by PBF-LB exhibited a high tensile strength exceeding 350 MPa and a low thermal conductivity of approximately 140 W m−1 K−1. Subsequent annealing at 300 °C improved the thermal conductivity to 175 W m−1 K−1 without compromising the strength. This improvement was attributable to forming numerous Al23CuFe4 nanoprecipitates, which consumed solute elements. By appropriately managing the factors contributing to strengthening, a superior strength–conductivity balance can be achieved by implementing post-heat treatments. |
| first_indexed | 2024-03-08T14:49:04Z |
| format | Article |
| id | doaj.art-86391666513c4584891286942d282542 |
| institution | Directory Open Access Journal |
| issn | 2772-3690 |
| language | English |
| last_indexed | 2024-03-08T14:49:04Z |
| publishDate | 2024-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Additive Manufacturing Letters |
| spelling | doaj.art-86391666513c4584891286942d2825422024-01-11T04:32:05ZengElsevierAdditive Manufacturing Letters2772-36902024-02-018100191Laser-beam powder bed fusion of Al–Fe–Cu alloy to achieve high strength and thermal conductivityYue Cheng0Takanobu Miyawaki1Wenyuan Wang2Naoki Takata3Asuka Suzuki4Makoto Kobashi5Masaki Kato6Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 Japan; Corresponding authors.Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 JapanDepartment of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 JapanDepartment of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 Japan; Corresponding authors.Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 JapanDepartment of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603 JapanAichi Center for Industry and Science Technology, 1267-1 Akiai, Yakusa-cho, Toyota 470-0356 JapanLaser-beam powder bed fusion (PBF-LB) technique was used to produce an Al–2.5 %Fe–2 %Cu ternary alloy, featuring a two-phase eutectic composition of α-Al/Al23CuFe4 in non-equilibrium solidification, as determined by thermodynamic calculations. The specimen manufactured by PBF-LB exhibited a high tensile strength exceeding 350 MPa and a low thermal conductivity of approximately 140 W m−1 K−1. Subsequent annealing at 300 °C improved the thermal conductivity to 175 W m−1 K−1 without compromising the strength. This improvement was attributable to forming numerous Al23CuFe4 nanoprecipitates, which consumed solute elements. By appropriately managing the factors contributing to strengthening, a superior strength–conductivity balance can be achieved by implementing post-heat treatments.http://www.sciencedirect.com/science/article/pii/S2772369023000713Additive manufacturingAl–Fe–Cu alloyTensile strengthThermal conductivityMicrostructure |
| spellingShingle | Yue Cheng Takanobu Miyawaki Wenyuan Wang Naoki Takata Asuka Suzuki Makoto Kobashi Masaki Kato Laser-beam powder bed fusion of Al–Fe–Cu alloy to achieve high strength and thermal conductivity Additive Manufacturing Letters Additive manufacturing Al–Fe–Cu alloy Tensile strength Thermal conductivity Microstructure |
| title | Laser-beam powder bed fusion of Al–Fe–Cu alloy to achieve high strength and thermal conductivity |
| title_full | Laser-beam powder bed fusion of Al–Fe–Cu alloy to achieve high strength and thermal conductivity |
| title_fullStr | Laser-beam powder bed fusion of Al–Fe–Cu alloy to achieve high strength and thermal conductivity |
| title_full_unstemmed | Laser-beam powder bed fusion of Al–Fe–Cu alloy to achieve high strength and thermal conductivity |
| title_short | Laser-beam powder bed fusion of Al–Fe–Cu alloy to achieve high strength and thermal conductivity |
| title_sort | laser beam powder bed fusion of al fe cu alloy to achieve high strength and thermal conductivity |
| topic | Additive manufacturing Al–Fe–Cu alloy Tensile strength Thermal conductivity Microstructure |
| url | http://www.sciencedirect.com/science/article/pii/S2772369023000713 |
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