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LIN Sanbao, XIA Yunhao, DONG Bolun, CAI Xiaoyu, FAN Chenglei. Microstructure and properties of dual-wire arc additive manufacturing of Al-Mg-Zn-Cu-Sc alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2022, 43(11): 36-42. DOI: 10.12073/j.hjxb.20220710001
Citation: LIN Sanbao, XIA Yunhao, DONG Bolun, CAI Xiaoyu, FAN Chenglei. Microstructure and properties of dual-wire arc additive manufacturing of Al-Mg-Zn-Cu-Sc alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2022, 43(11): 36-42. DOI: 10.12073/j.hjxb.20220710001
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Microstructure and properties of dual-wire arc additive manufacturing of Al-Mg-Zn-Cu-Sc alloy

  • State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

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  • Received Date: July 09, 2022
  • Available Online: October 13, 2022
    Graphical Abstract
    • Abstract
  • The Al-Mg-Zn-Cu-Sc alloy was fabricated via dual-wire arc additive manufacturing to improve the processing and defect problem. According to the process stability and forming conditions and microstructure, the process parameters such as wire feeding position, wire feeding speed, and variable polarity frequency were studied. The parameters with less porosity and better forming conditions were obtained. The microstructure and mechanical properties of Al-Mg-Zn-Cu-Sc alloy prepared at different scanning speeds were analyzed. The microstructure and failure zone of the sample were observed, and the fracture types and microstructure characteristics were confirmed. Finally, the process range of Al-Mg-Zn-Cu-Sc aluminum alloy prepared by dual-wire arc additive manufacturing was obtained, and the basic microstructure characteristics of deposited Al-Mg-Zn-Cu-Sc aluminum alloy were defined.
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    • References (16)
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