• Chinese Journal of Lasers
  • Vol. 46, Issue 4, 0402009 (2019)
Jinzhi Zhang1,*, Anfeng Zhang1,*, Hong Wang1, Xiaoxing Zhang2, and Yuyue Wang2
Author Affiliations
  • 1 State Key Laboratory for Manufacturing Systems Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
  • 2 State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
  • show less
    DOI: 10.3788/CJL201946.0402009 Cite this Article Set citation alerts
    Jinzhi Zhang, Anfeng Zhang, Hong Wang, Xiaoxing Zhang, Yuyue Wang. Microstructure and Anisotropy of High Performance TC4 Obtained by Micro Forging Laser Cladding Deposition[J]. Chinese Journal of Lasers, 2019, 46(4): 0402009 Copy Citation Text show less
    Schematic of micro forging assisted LCD system
    Fig. 1. Schematic of micro forging assisted LCD system
    Relationships between micro-forging process parameters and surface residual stress of formed parts. (a) Forging speed and surface residual stress; (b) amplitude and surface residual stress; (c) forging times and surface residual stress
    Fig. 2. Relationships between micro-forging process parameters and surface residual stress of formed parts. (a) Forging speed and surface residual stress; (b) amplitude and surface residual stress; (c) forging times and surface residual stress
    Morphology of formed parts in different states. (a) Deposition state; (b) solution aging state; (c) micro forging-solution aging state
    Fig. 3. Morphology of formed parts in different states. (a) Deposition state; (b) solution aging state; (c) micro forging-solution aging state
    Relationships between micro forging process parameters and equiaxed grain size. (a) Forging speed and equiaxed grain size; (b) amplitude and equiaxed grain size; (c) forging times and equiaxed grain size
    Fig. 4. Relationships between micro forging process parameters and equiaxed grain size. (a) Forging speed and equiaxed grain size; (b) amplitude and equiaxed grain size; (c) forging times and equiaxed grain size
    Effect of amplitude on equiaxed grain size
    Fig. 5. Effect of amplitude on equiaxed grain size
    Relationships between micro forging process parameters and surface roughness Ra of formed parts. (a) Forging speed and surface roughness; (b) amplitude and surface roughness; (c) forging times and surface roughness
    Fig. 6. Relationships between micro forging process parameters and surface roughness Ra of formed parts. (a) Forging speed and surface roughness; (b) amplitude and surface roughness; (c) forging times and surface roughness
    Fracture morphology of formed parts in different directions after micro forging solution aging treatment. (a) xy direction; (b) z direction
    Fig. 7. Fracture morphology of formed parts in different directions after micro forging solution aging treatment. (a) xy direction; (b) z direction
    Anisotropy of tensile properties of samples in different states
    Fig. 8. Anisotropy of tensile properties of samples in different states
    Microstructures of formed parts in different states. (a) Deposition state; (b) solution aging; (c) micro forging-solution aging
    Fig. 9. Microstructures of formed parts in different states. (a) Deposition state; (b) solution aging; (c) micro forging-solution aging
    ElementAlVFeOCNHTi
    TC4 powder6.034.190.10.120.020.010.001Bal.
    TC4 substrate5.964.20.20.150.080.030.001Bal.
    Table 1. Main chemical composition of TC4 powder and TC4 substrate (mass fraction, %)
    ParameterValue
    Forging speed /(mm·s-1)3,5,7
    Amplitude /μm20,30,40
    Forging times1,2,3
    Forging interval /mm0.6
    Table 2. Process parameters of micro forging
    StateDirectionTensilestrength /MPaYieldstrength /MPaElongation /%Reductionof area /%
    Depositionxy114910504.313.5
    z10639601231.7
    Solution agingxy1003910.31020.3
    z1080.7988.39.829.7
    Micro forging-solution agingxy1059.5971.514.534.5
    z1105.71004.713.535.3
    HB 5432—1989895.0825.0≥8≥20
    Table 3. Room-temperature tensile properties of formed parts in different states
    Jinzhi Zhang, Anfeng Zhang, Hong Wang, Xiaoxing Zhang, Yuyue Wang. Microstructure and Anisotropy of High Performance TC4 Obtained by Micro Forging Laser Cladding Deposition[J]. Chinese Journal of Lasers, 2019, 46(4): 0402009
    Download Citation