Chinese Journal of Lasers, Volume. 51, Issue 16, 1602308(2024)

Microstructure and Strength-Toughness of FSP-Assisted Laser Deposited AlSi10Mg Alloy

Haisheng Zhao1,2, Feng Zhang2, Chengchao Du3、*, Xudong Ren3, Xiangyu Wei2, and Junjie Gao2
Author Affiliations
  • 1AECC Beijing Institute of Aeronautical Materials, Beijing 100095, China
  • 2HFYC (Zhenjiang) Additive Manufacturing Co., Ltd., Zhenjiang 212132, Jiangsu , China
  • 3School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu , China
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    Figures & Tables(13)
    Schematics of FSP-assisted laser deposition. (a) Friction stir processing of 1st and 2nd deposition layers; (b) friction stir processing of 3rd and 4th deposition layers; (c) 1st, 2nd, 3rd, and 4th deposition layers after FSP
    Microstructure of laser deposited AlSi10Mg alloy. (a) Microstructure; (b) local magnification of Fig. 2(a); (c) Si mapping; (d) Mg mapping; (e) Al mapping
    Microstructural characterization of AlSi10Mg alloy from TEM. (a) Distributions of α-Al, Si phase, and Mg2Si particle; (b) interaction between dislocation and Mg2Si particle
    Microstructural characterization of AlSi10Mg alloy from EBSD. (a)(b) Grain orientation distributions; (c) {100} pole figure; (d) {110} pole figure; (e) {111} pole figure
    Microstructures of FSP-assisted laser deposited AlSi10Mg alloy. (a) Macro-morphology; (b) micro-morphology
    Microstructural characterization of FSP-assisted laser deposited AlSi10Mg from TEM. (a) Distribution of α-Al and Si particle;(b) Mg2Si particle distribution; (c)(d) interaction between dislocation and Mg2Si particle
    Microstructural characterization of FSP-assisted laser deposited AlSi10Mg alloy from EBSD. (a) Diffraction band contrast image; (b) grain orientation distribution; (c) {100} pole figure; (d) {110} pole figure; (e) {111} pole figure
    Microstructural characterization of FSP-assisted laser deposited AlSi10Mg alloy from TEM after cool rolling. (a) 20% deformation; (b) 46% deformation; (c) 68% deformation
    Distributions of tensile strength and elongation of AlSi10Mg alloys
    Tensile fractures of laser deposited and FSP-assisted laser deposited AlSi10Mg alloys. (a) Laser deposited AlSi10Mg alloy; (b) FSP-assisted laser deposited AlSi10Mg alloy; (c) local magnification of Fig. 10(a); (d) local magnification of Fig. 10(b)
    Tensile fractures of FSP-assisted laser deposited AlSi10Mg alloys after rolling. (a) 20% deformation; (b) 46% deformation; (c) 68% deformation
    • Table 1. Processing parameters of AlSi10Mg alloys

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      Table 1. Processing parameters of AlSi10Mg alloys

      No.Processing parameter
      1Laser deposition
      2Laser deposition+FSP
      3Laser deposition+FSP+rolling with 20% deformation
      4Laser deposition+FSP+rolling with 46% deformation
      5Laser deposition+FSP+rolling with 68% deformation
    • Table 2. Hardnesses of AlSi10Mg alloys

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      Table 2. Hardnesses of AlSi10Mg alloys

      No.12345
      Hardness /HV109±475±789±5101±3116±6
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    Haisheng Zhao, Feng Zhang, Chengchao Du, Xudong Ren, Xiangyu Wei, Junjie Gao. Microstructure and Strength-Toughness of FSP-Assisted Laser Deposited AlSi10Mg Alloy[J]. Chinese Journal of Lasers, 2024, 51(16): 1602308

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    Paper Information

    Category: Laser Additive Manufacturing

    Received: Jun. 30, 2023

    Accepted: Oct. 11, 2023

    Published Online: Apr. 17, 2024

    The Author Email: Du Chengchao (dccmaterials@ujs.edu.cn)

    DOI:10.3788/CJL230976

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