J. Mater. Sci. Technol. ›› 2025, Vol. 228: 107-124.DOI: 10.1016/j.jmst.2024.11.079

• Research article • Previous Articles     Next Articles

Hybrid heat-source solid-state additive manufacturing: A method to fabricate high performance AA6061 deposition

Qian Qiaoa, Chan Wa Tama,b,c, Wai I Lama,b,c, Kaiyuan Wanga,b, Dawei Guoa,b,*, Chi Tat Kwokc, Yongyong Lind,*, Guoshun Yangd, Hongchang Qiane, Dawei Zhange,*, Xiaogang Lie, Lap Mou Tama,b,c,*   

  1. aIDQ Science and Technology (Hengqin, Guangdong) Co. Ltd., Guangdong 519031, China;
    bInstitute for the Development and Quality, Macau 999078, China;
    cDepartment of Electromechanical Engineering, University of Macau, Macao 999078,China;
    dAerospace Engineering Equipment (Suzhou) Co. Ltd., Suzhou 215100,China;
    eNational Materials Corrosion and Protection Data Center, Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
  • Received:2024-09-27 Revised:2024-11-24 Accepted:2024-11-27 Published:2025-09-01 Online:2025-09-01
  • Contact: *E-mail addresses: dwguo@idq.org.mo (D. Guo), linyongyong@aeespace.com (Y. Lin), dzhang@ustb.edu.cn (D. Zhang), fstlmt@um.edu.mo (L.M. Tam)

Abstract: An approach called hybrid heat-source solid-state additive manufacturing (HHSAM) for fabricating multilayer AA6061 deposition with superior properties is proposed in this paper. As compared with the traditional additive friction stir deposition (AFSD), the auxiliary induction heat-source in HHSAM effectively improves the temperature and fluidity of plastic flow, which facilitates the formation and enrichment of residual Mg2Si phases besides Al(Fe,Mn)Si, promotes the dynamic recrystallization and increases the bonding strength between layers during the deposition process. Therefore, the HHSAM depositions possess a more uniform structure, superior integral mechanical properties and corrosion resistance after heat treatment process. Moreover, HHSAMed specimens avoid abnormal grain growth (AGG) in heat treatment process, which is regularly encountered in the traditional AFSD. HHSAM method is proved to be a new solid-state additive manufacturing method with good developing prospects for fabricating alloy production with excellent properties in a high-efficiency manner.

Key words: Hybrid heat-source solid-state additive manufacturing, Additive friction stir deposition, Mechanical properties, Corrosion resistance