Non-oxidized graphene/metal composites by laser deposition additive manufacturing
Wang T. Meng Q. Araby S. Yang G. Li P. Cai R. Han S. Wang W.
15 November 2021Elsevier Ltd
Journal of Alloys and Compounds
2021#882
Graphene-based metallic nanocomposites are promising materials for applications where tailored strength and functionality are required such as space and automotive industries. Additive manufacturing, specifically 3D printing, is currently considered a revolutionary process to tailor and engineer materials for certain applications. Herein, we report fast and reliable approach to prepare mechanically robust, ductile and high thermally conductive graphene-based aluminum nanocomposites using laser deposition manufacturing (LDM). Conventional ball milling was used to homogenously mix graphene platelets and aluminum alloy powder (AlSi7Mg) and then sintered by LDM. Structure-property relations of aluminum/graphene nanocomposites were investigated and thus LDM process was assessed. This includes morphological characterizations such as optical microscopy, transmission electron microscopy, x-ray diffraction and energy dispersive spectrometry; and mechanical properties measurements including tensile test and Vickers hardness. The 3D printed Al-alloy/graphene nanocomposites showed increments of 60.7%, 23.03%, 193.7% and 66% in tensile strength, Youngs modulus, elongation at break and Vickers hardness in comparison with pure Al-alloy. This study proved reliability of 3D printing metallic composites with mechanical robustness and other tailored functionality such as thermal conductivity.
Graphene , Laser deposition manufacturing (LDM) , Mechanical properties , Metal matrix composites (MMCs)
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Key Laboratory of Fundamental Science for Aeronautical Digital Manufacturing Process and College of Aerospace Engineering, Shenyang Aerospace University, 37 Daoyi South Avenue, Shenyang, Liaoning, 110136, China
College of Mechanical and Electrical Engineering, Shenyang Aerospace University, 37 Daoyi South Avenue, Shenyang, Liaoning, 110136, China
School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
School of Mechanical, Aerospace and Automotive Engineering, Coventry University, Coventry, CV1 2JH, United Kingdom
Key Laboratory of Fundamental Science for Aeronautical Digital Manufacturing Process and College of Aerospace Engineering
College of Mechanical and Electrical Engineering
School of Engineering and Digital Sciences
School of Mechanical
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