Hybrid manufacturing of AlSi10Mg metamaterials: Process, static and impact response attributes
The work investigates the microstructural, static and impact mechanical attributes of hybrid-cast aluminum AlSi10Mg metamaterials. For the analysis, different metamaterial topologies, namely BCC, IWP and gyroid-based architectures, are considered. The microstructural characteristics of hybrid-cast m...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-11-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423029022 |
| _version_ | 1797301468376596480 |
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| author | Agyapal Singh Oraib Al-Ketan Nikolaos Karathanasopoulos |
| author_facet | Agyapal Singh Oraib Al-Ketan Nikolaos Karathanasopoulos |
| author_sort | Agyapal Singh |
| collection | DOAJ |
| description | The work investigates the microstructural, static and impact mechanical attributes of hybrid-cast aluminum AlSi10Mg metamaterials. For the analysis, different metamaterial topologies, namely BCC, IWP and gyroid-based architectures, are considered. The microstructural characteristics of hybrid-cast metamaterials are thoroughly investigated, assessing their attributes through scanning electron microscopy (SEM) and CT-scanning methods. Moreover, their static and impact attributes are experimentally characterized, quantifying elastic and post-elastic properties, while associating the performance of hybrid-cast and as-built, powder bed fusion (PBF) based metamaterials. PBF samples yield overall superior Young's moduli and higher peak stresses, though upon a brittle post-elastic response. Contrariwise, hybrid-cast metamaterials result in a ductile post-elastic, continuum-type plastification performance with a considerable energy absorption capacity that depends on the metamaterial topology, aspects both experimentally and numerically elaborated. Under dynamic impact loading, substantial peak stress and toughness enhancements are recorded for the hybrid-cast specimens. The analysis furnishes process-structure-property benchmark data on the mechanical performance of advanced, hybrid-cast metamaterial topologies for the first time. We aspire that the provided results foster novel pathways in the engineering of advanced media for a variety of base materials beyond the aluminum alloy here investigated. |
| first_indexed | 2024-03-07T23:23:00Z |
| format | Article |
| id | doaj.art-8bf01a1f60ab4207be251752e3a14320 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-07T23:23:00Z |
| publishDate | 2023-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-8bf01a1f60ab4207be251752e3a143202024-02-21T05:28:03ZengElsevierJournal of Materials Research and Technology2238-78542023-11-012774577469Hybrid manufacturing of AlSi10Mg metamaterials: Process, static and impact response attributesAgyapal Singh0Oraib Al-Ketan1Nikolaos Karathanasopoulos2New York University, Department of Engineering, Abu Dhabi, United Arab EmiratesNew York University, Core Technology Platforms, Abu Dhabi Campus, United Arab Emirates; Corresponding author. NYUAD, United Arab Emirates.New York University, Department of Engineering, Abu Dhabi, United Arab Emirates; New York University, Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, Brooklyn, NY, 11201, USA; Corresponding author. New York University, Department of Mechanical and Aerospace Engineering, Tandon School of Engineering, Brooklyn, NY, 11201, USA.The work investigates the microstructural, static and impact mechanical attributes of hybrid-cast aluminum AlSi10Mg metamaterials. For the analysis, different metamaterial topologies, namely BCC, IWP and gyroid-based architectures, are considered. The microstructural characteristics of hybrid-cast metamaterials are thoroughly investigated, assessing their attributes through scanning electron microscopy (SEM) and CT-scanning methods. Moreover, their static and impact attributes are experimentally characterized, quantifying elastic and post-elastic properties, while associating the performance of hybrid-cast and as-built, powder bed fusion (PBF) based metamaterials. PBF samples yield overall superior Young's moduli and higher peak stresses, though upon a brittle post-elastic response. Contrariwise, hybrid-cast metamaterials result in a ductile post-elastic, continuum-type plastification performance with a considerable energy absorption capacity that depends on the metamaterial topology, aspects both experimentally and numerically elaborated. Under dynamic impact loading, substantial peak stress and toughness enhancements are recorded for the hybrid-cast specimens. The analysis furnishes process-structure-property benchmark data on the mechanical performance of advanced, hybrid-cast metamaterial topologies for the first time. We aspire that the provided results foster novel pathways in the engineering of advanced media for a variety of base materials beyond the aluminum alloy here investigated.http://www.sciencedirect.com/science/article/pii/S2238785423029022Additive manufacturingPowder bed fusionMetamaterialsInvestment castingFinite element modelingImpact |
| spellingShingle | Agyapal Singh Oraib Al-Ketan Nikolaos Karathanasopoulos Hybrid manufacturing of AlSi10Mg metamaterials: Process, static and impact response attributes Journal of Materials Research and Technology Additive manufacturing Powder bed fusion Metamaterials Investment casting Finite element modeling Impact |
| title | Hybrid manufacturing of AlSi10Mg metamaterials: Process, static and impact response attributes |
| title_full | Hybrid manufacturing of AlSi10Mg metamaterials: Process, static and impact response attributes |
| title_fullStr | Hybrid manufacturing of AlSi10Mg metamaterials: Process, static and impact response attributes |
| title_full_unstemmed | Hybrid manufacturing of AlSi10Mg metamaterials: Process, static and impact response attributes |
| title_short | Hybrid manufacturing of AlSi10Mg metamaterials: Process, static and impact response attributes |
| title_sort | hybrid manufacturing of alsi10mg metamaterials process static and impact response attributes |
| topic | Additive manufacturing Powder bed fusion Metamaterials Investment casting Finite element modeling Impact |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423029022 |
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