Hybrid regulation for the enhanced mechanical properties of laser powder bed fused AlSi10Mg alloy: Remelting with laser shock-based SiC implantation
Laser powder bed fusion (LPBF) has been one of the most widely used additive manufacturing (AM) technologies. However, the LPBF-built AlSi10Mg alloy is still restricted by the mechanical performance. In this work, a hybrid laser regulation method combining in-situ laser remelting (LSR) and ex-situ l...
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Elsevier
2025-02-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525000462 |
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| author | Jiantao Zhou Xiao Yang Wei Shen Gai Wu Fang Dong |
| author_facet | Jiantao Zhou Xiao Yang Wei Shen Gai Wu Fang Dong |
| author_sort | Jiantao Zhou |
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| description | Laser powder bed fusion (LPBF) has been one of the most widely used additive manufacturing (AM) technologies. However, the LPBF-built AlSi10Mg alloy is still restricted by the mechanical performance. In this work, a hybrid laser regulation method combining in-situ laser remelting (LSR) and ex-situ laser shock-based SiC implantation (LSI-SiC) was proposed. The experiments demonstrated that the compressive residual stress with the value of 72 MPa was obtained with weaken surface flatness after hybrid laser regulation. Nanoscale grains were presented with obvious dislocation tangle. The high tensile strength (492 MPa) was achieved while maintaining good ductility (4.5 %) attributed to various strengthening effects. The numerical results showed that the dislocation and atomic stress were more sensitive for the size and shape of nanoscale SiC. This work provides a novel guidance for simultaneously enhancing the strength and ductility of AlSi10Mg alloy via effectively combining in-situ and ex-situ laser regulation. |
| format | Article |
| id | doaj-art-ea92f0b6d42b4af9a2176ed7f436b7fb |
| institution | Kabale University |
| issn | 0264-1275 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj-art-ea92f0b6d42b4af9a2176ed7f436b7fb2025-01-19T06:24:08ZengElsevierMaterials & Design0264-12752025-02-01250113626Hybrid regulation for the enhanced mechanical properties of laser powder bed fused AlSi10Mg alloy: Remelting with laser shock-based SiC implantationJiantao Zhou0Xiao Yang1Wei Shen2Gai Wu3Fang Dong4The Institute of Technological Sciences, Wuhan University, Wuhan 430072 China; Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201 China; Hubei Key Laboratory of Electronic Manufacturing and Packaging Integration (Wuhan University), Wuhan University, Wuhan 430072 ChinaNingbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201 ChinaThe Institute of Technological Sciences, Wuhan University, Wuhan 430072 China; Hubei Key Laboratory of Electronic Manufacturing and Packaging Integration (Wuhan University), Wuhan University, Wuhan 430072 China; Corresponding authors.The Institute of Technological Sciences, Wuhan University, Wuhan 430072 ChinaThe Institute of Technological Sciences, Wuhan University, Wuhan 430072 China; Corresponding authors.Laser powder bed fusion (LPBF) has been one of the most widely used additive manufacturing (AM) technologies. However, the LPBF-built AlSi10Mg alloy is still restricted by the mechanical performance. In this work, a hybrid laser regulation method combining in-situ laser remelting (LSR) and ex-situ laser shock-based SiC implantation (LSI-SiC) was proposed. The experiments demonstrated that the compressive residual stress with the value of 72 MPa was obtained with weaken surface flatness after hybrid laser regulation. Nanoscale grains were presented with obvious dislocation tangle. The high tensile strength (492 MPa) was achieved while maintaining good ductility (4.5 %) attributed to various strengthening effects. The numerical results showed that the dislocation and atomic stress were more sensitive for the size and shape of nanoscale SiC. This work provides a novel guidance for simultaneously enhancing the strength and ductility of AlSi10Mg alloy via effectively combining in-situ and ex-situ laser regulation.http://www.sciencedirect.com/science/article/pii/S0264127525000462Laser powder bed fusionAlSi10Mg alloyLaser remeltingSiC implantationStrengthening mechanism |
| spellingShingle | Jiantao Zhou Xiao Yang Wei Shen Gai Wu Fang Dong Hybrid regulation for the enhanced mechanical properties of laser powder bed fused AlSi10Mg alloy: Remelting with laser shock-based SiC implantation Materials & Design Laser powder bed fusion AlSi10Mg alloy Laser remelting SiC implantation Strengthening mechanism |
| title | Hybrid regulation for the enhanced mechanical properties of laser powder bed fused AlSi10Mg alloy: Remelting with laser shock-based SiC implantation |
| title_full | Hybrid regulation for the enhanced mechanical properties of laser powder bed fused AlSi10Mg alloy: Remelting with laser shock-based SiC implantation |
| title_fullStr | Hybrid regulation for the enhanced mechanical properties of laser powder bed fused AlSi10Mg alloy: Remelting with laser shock-based SiC implantation |
| title_full_unstemmed | Hybrid regulation for the enhanced mechanical properties of laser powder bed fused AlSi10Mg alloy: Remelting with laser shock-based SiC implantation |
| title_short | Hybrid regulation for the enhanced mechanical properties of laser powder bed fused AlSi10Mg alloy: Remelting with laser shock-based SiC implantation |
| title_sort | hybrid regulation for the enhanced mechanical properties of laser powder bed fused alsi10mg alloy remelting with laser shock based sic implantation |
| topic | Laser powder bed fusion AlSi10Mg alloy Laser remelting SiC implantation Strengthening mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S0264127525000462 |
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