Non-oxidized graphene/metal composites by laser deposition additive manufacturing

Tianqing Wang, Qingshi Meng, Sherif Araby, Guang Yang, Pengxu Li, Rui Cai, Sensen Han, Wei Wang

    Research output: Contribution to journalArticlepeer-review

    15 Citations (Scopus)
    133 Downloads (Pure)

    Abstract

    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, Young’s 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
    Original languageEnglish
    Article number160724
    JournalJournal of Alloys and Compounds
    Volume882
    Early online date8 Jun 2021
    DOIs
    Publication statusPublished - 15 Nov 2021

    Bibliographical note

    © 2021, Elsevier. Licensed under the Creative Commons AttributionNonCommercial-NoDerivatives 4.0 International
    http://creativecommons.org/licenses/by-nc-nd/4.0/
    Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium
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    Funder

    Open Fund of Key Laboratory of Fundamental Science for Aeronautical Digital Manufacturing Process of Shenyang Aerospace University ( SHSYS201905 ) and the plan of rejuvenating the Talents of Liaoning Province ( XLYC1907135 ).

    Keywords

    • Graphene
    • Laser deposition manufacturing (LDM)
    • Mechanical properties
    • Metal matrix composites (MMCs)

    ASJC Scopus subject areas

    • Mechanics of Materials
    • Mechanical Engineering
    • Metals and Alloys
    • Materials Chemistry

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