Enhancement in strength and ductility of laser powder bed fused Al–12Si alloy by introducing nanoscale precipitates
In order to manage both the strength and ductility of Al–Si alloys additively manufactured by laser powder bed fusion (L-PBF), an attempt was made to introduce nanoscale precipitates within the α-Al (fcc) supersaturated solid solution using the L-PBF manufactured Al–12%Si alloy by artificial aging t...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2021-12-01
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| Series: | Additive Manufacturing Letters |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772369021000086 |
| _version_ | 1819177695096864768 |
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| author | Mulin Liu Naoki Takata Asuka Suzuki Makoto Kobashi Masaki Kato |
| author_facet | Mulin Liu Naoki Takata Asuka Suzuki Makoto Kobashi Masaki Kato |
| author_sort | Mulin Liu |
| collection | DOAJ |
| description | In order to manage both the strength and ductility of Al–Si alloys additively manufactured by laser powder bed fusion (L-PBF), an attempt was made to introduce nanoscale precipitates within the α-Al (fcc) supersaturated solid solution using the L-PBF manufactured Al–12%Si alloy by artificial aging treatments. The aging treatment at 120°C improved both the tensile strength and ductility (total elongation) of the L-PBF manufactured specimen. The simultaneous strength–ductility enhancement is due to the homogeneously distributed nanoscale Si precipitates that enhanced the strain hardening. These results provide new insights for overcoming the strength-ductility trade-off in the L-PBF manufactured Al alloys. |
| first_indexed | 2024-12-22T21:30:44Z |
| format | Article |
| id | doaj.art-98c7355db1b74868866c04428e56dcc8 |
| institution | Directory Open Access Journal |
| issn | 2772-3690 |
| language | English |
| last_indexed | 2024-12-22T21:30:44Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Additive Manufacturing Letters |
| spelling | doaj.art-98c7355db1b74868866c04428e56dcc82022-12-21T18:11:56ZengElsevierAdditive Manufacturing Letters2772-36902021-12-011100008Enhancement in strength and ductility of laser powder bed fused Al–12Si alloy by introducing nanoscale precipitatesMulin Liu0Naoki Takata1Asuka Suzuki2Makoto Kobashi3Masaki Kato4Department 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 author.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, Toyota, Yakusa-cho 470-0356 JapanIn order to manage both the strength and ductility of Al–Si alloys additively manufactured by laser powder bed fusion (L-PBF), an attempt was made to introduce nanoscale precipitates within the α-Al (fcc) supersaturated solid solution using the L-PBF manufactured Al–12%Si alloy by artificial aging treatments. The aging treatment at 120°C improved both the tensile strength and ductility (total elongation) of the L-PBF manufactured specimen. The simultaneous strength–ductility enhancement is due to the homogeneously distributed nanoscale Si precipitates that enhanced the strain hardening. These results provide new insights for overcoming the strength-ductility trade-off in the L-PBF manufactured Al alloys.http://www.sciencedirect.com/science/article/pii/S2772369021000086Laser powder bed fusionSelective laser meltingAluminum alloyStrain hardeningHeat treatments |
| spellingShingle | Mulin Liu Naoki Takata Asuka Suzuki Makoto Kobashi Masaki Kato Enhancement in strength and ductility of laser powder bed fused Al–12Si alloy by introducing nanoscale precipitates Additive Manufacturing Letters Laser powder bed fusion Selective laser melting Aluminum alloy Strain hardening Heat treatments |
| title | Enhancement in strength and ductility of laser powder bed fused Al–12Si alloy by introducing nanoscale precipitates |
| title_full | Enhancement in strength and ductility of laser powder bed fused Al–12Si alloy by introducing nanoscale precipitates |
| title_fullStr | Enhancement in strength and ductility of laser powder bed fused Al–12Si alloy by introducing nanoscale precipitates |
| title_full_unstemmed | Enhancement in strength and ductility of laser powder bed fused Al–12Si alloy by introducing nanoscale precipitates |
| title_short | Enhancement in strength and ductility of laser powder bed fused Al–12Si alloy by introducing nanoscale precipitates |
| title_sort | enhancement in strength and ductility of laser powder bed fused al 12si alloy by introducing nanoscale precipitates |
| topic | Laser powder bed fusion Selective laser melting Aluminum alloy Strain hardening Heat treatments |
| url | http://www.sciencedirect.com/science/article/pii/S2772369021000086 |
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