Improved mechanical and electrical properties of copper-aluminum joints with highly aligned graphene reinforcement via friction stir spot welding
This study demonstrates the potential of friction stir spot welding (FSSW) for producing highly aligned graphene configurations in copper-aluminum joints, resulting in improved mechanical and electrical properties. Pure copper and AA6061 sheet were welded with 0.5% graphene nanoparticles dispersed i...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785423011201 |
| _version_ | 1827920136492810240 |
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| author | Mohammad Syahid Mohd Isa Mohd Ridha Muhamad Farazila Yusof Nukman Yusoff Zbigniew Brytan Tetsuo Suga Yoshiaki Morisada Hidetoshi Fujii |
| author_facet | Mohammad Syahid Mohd Isa Mohd Ridha Muhamad Farazila Yusof Nukman Yusoff Zbigniew Brytan Tetsuo Suga Yoshiaki Morisada Hidetoshi Fujii |
| author_sort | Mohammad Syahid Mohd Isa |
| collection | DOAJ |
| description | This study demonstrates the potential of friction stir spot welding (FSSW) for producing highly aligned graphene configurations in copper-aluminum joints, resulting in improved mechanical and electrical properties. Pure copper and AA6061 sheet were welded with 0.5% graphene nanoparticles dispersed in ethanol drop cast at the interface. Under optimized experimental conditions, adding a graphene interlayer results in a 15.6% increase in maximum shear strength, a 46% increase in hardness value, and a 23% reduction in joint electrical resistance. Transmission electron microscopy confirmed that the laminar flow behavior of the material aligns the graphene nanoparticles parallel to the tool surface direction. The mechanical improvements are attributed to the reduction of grain size and the plastic incompatibilities that arise at the metal-graphene interface. The highly aligned graphene configuration provides more conductive paths and acts as a bridge between grains to reduce grain boundary resistance, reducing electrical resistance. These findings pave the way for exploring the possibilities of utilizing the anisotropic properties of graphene in material joining applications. |
| first_indexed | 2024-03-13T04:08:17Z |
| format | Article |
| id | doaj.art-5e7bce1a691547708a9a26688ef8e728 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-03-13T04:08:17Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-5e7bce1a691547708a9a26688ef8e7282023-06-21T06:57:57ZengElsevierJournal of Materials Research and Technology2238-78542023-05-012492039215Improved mechanical and electrical properties of copper-aluminum joints with highly aligned graphene reinforcement via friction stir spot weldingMohammad Syahid Mohd Isa0Mohd Ridha Muhamad1Farazila Yusof2Nukman Yusoff3Zbigniew Brytan4Tetsuo Suga5Yoshiaki Morisada6Hidetoshi Fujii7Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, MalaysiaDepartment of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia; Centre of Advanced Manufacturing and Material Processing (AMMP Centre), University of Malaya, 50603, Kuala Lumpur, Malaysia; Corresponding author.Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, Malaysia; Centre of Advanced Manufacturing and Material Processing (AMMP Centre), University of Malaya, 50603, Kuala Lumpur, MalaysiaDepartment of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603, Kuala Lumpur, MalaysiaDepartment of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, 44-100, Gliwice, PolandJoining and Welding Research Institute, Osaka University, Ibaraki, 567-0047, JapanJoining and Welding Research Institute, Osaka University, Ibaraki, 567-0047, JapanJoining and Welding Research Institute, Osaka University, Ibaraki, 567-0047, JapanThis study demonstrates the potential of friction stir spot welding (FSSW) for producing highly aligned graphene configurations in copper-aluminum joints, resulting in improved mechanical and electrical properties. Pure copper and AA6061 sheet were welded with 0.5% graphene nanoparticles dispersed in ethanol drop cast at the interface. Under optimized experimental conditions, adding a graphene interlayer results in a 15.6% increase in maximum shear strength, a 46% increase in hardness value, and a 23% reduction in joint electrical resistance. Transmission electron microscopy confirmed that the laminar flow behavior of the material aligns the graphene nanoparticles parallel to the tool surface direction. The mechanical improvements are attributed to the reduction of grain size and the plastic incompatibilities that arise at the metal-graphene interface. The highly aligned graphene configuration provides more conductive paths and acts as a bridge between grains to reduce grain boundary resistance, reducing electrical resistance. These findings pave the way for exploring the possibilities of utilizing the anisotropic properties of graphene in material joining applications.http://www.sciencedirect.com/science/article/pii/S2238785423011201Friction stir spot weldingDissimilar metal jointNanomaterial additivesHighly-aligned grapheneCopperAluminum |
| spellingShingle | Mohammad Syahid Mohd Isa Mohd Ridha Muhamad Farazila Yusof Nukman Yusoff Zbigniew Brytan Tetsuo Suga Yoshiaki Morisada Hidetoshi Fujii Improved mechanical and electrical properties of copper-aluminum joints with highly aligned graphene reinforcement via friction stir spot welding Journal of Materials Research and Technology Friction stir spot welding Dissimilar metal joint Nanomaterial additives Highly-aligned graphene Copper Aluminum |
| title | Improved mechanical and electrical properties of copper-aluminum joints with highly aligned graphene reinforcement via friction stir spot welding |
| title_full | Improved mechanical and electrical properties of copper-aluminum joints with highly aligned graphene reinforcement via friction stir spot welding |
| title_fullStr | Improved mechanical and electrical properties of copper-aluminum joints with highly aligned graphene reinforcement via friction stir spot welding |
| title_full_unstemmed | Improved mechanical and electrical properties of copper-aluminum joints with highly aligned graphene reinforcement via friction stir spot welding |
| title_short | Improved mechanical and electrical properties of copper-aluminum joints with highly aligned graphene reinforcement via friction stir spot welding |
| title_sort | improved mechanical and electrical properties of copper aluminum joints with highly aligned graphene reinforcement via friction stir spot welding |
| topic | Friction stir spot welding Dissimilar metal joint Nanomaterial additives Highly-aligned graphene Copper Aluminum |
| url | http://www.sciencedirect.com/science/article/pii/S2238785423011201 |
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