Laser & Optoelectronics Progress, Volume. 57, Issue 9, 091405(2020)

Effect of Laser Power on the Mechanical Properties of the Cobalt-Based/GO Composite Coatings

Hang Wang, Meiping Wu*, Peipei Lu, and Xiu Ye
Author Affiliations
  • School of Mechanical Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China
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    Figures & Tables(13)
    Combination of cladding layer and matrix. (a) Topography; (b) metallographic diagram
    Metallographic organization diagrams at P1 = 1000 W. (a) Surface layer of cladding layer; (b) inside of cladding layer; (c) adjacent substrate region
    Metallographic organization diagrams at P2=1300 W. (a) Surface layer of cladding layer; (b) inside of cladding layer; (c) adjacent substrate region
    Metallographic structure of P3=1600 W under different scales. (a)(b)(c) 50 μm; (d)(e) 20 μm
    Metallographic organization diagrams at P4=1900 W. (a) Adjacent substrate region; (b) central area of cladding layer
    Micromorphology of the cladding layer at different powers. (a) P2=1300 W; (b) P4=1900 W
    XRD pattern of cladding layer at different powers
    Microhardness diagrams. (a) Microhardness curves at different powers; (b) comparison of average hardness of matrix and each coating
    • Table 1. Chemical composition of the Ti-6Al-4V matrix

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      Table 1. Chemical composition of the Ti-6Al-4V matrix

      ElementTiAlVFeOther
      Mass fraction /%88.996.04.330.30.38
    • Table 2. Chemical composition of CoCrMo powder

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      Table 2. Chemical composition of CoCrMo powder

      ElementCoCrMoFeOther
      Mass fraction /%64.9628.475.920.0890.56
    • Table 3. Technological parameters of laser cladding

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      Table 3. Technological parameters of laser cladding

      SamplePower P1 /WScanning speedV1 /(mm·s-1)Powder feedrate V2 /(r·min-1)Spot diameter D /mm
      A1100061.24
      A2130061.24
      A3160061.24
      A4190061.24
    • Table 4. Cladding layer composition at P2=1300 W

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      Table 4. Cladding layer composition at P2=1300 W

      ZoneMass fraction /%
      COAloVCoTiCr
      111.523.262.673.300.9640.2830.277.74
      228.625.2802.670.5223.2132.427.28
    • Table 5. Cladding layer composition at P4=1900 W

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      Table 5. Cladding layer composition at P4=1900 W

      ZoneMass fraction /%
      CAlTiMoVCrCo
      10.861.2539.672.171.2311.4043.42
      20.371.1540.161.232.369.3045.43
      301.3622.580.923.266.0265.86
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    Hang Wang, Meiping Wu, Peipei Lu, Xiu Ye. Effect of Laser Power on the Mechanical Properties of the Cobalt-Based/GO Composite Coatings[J]. Laser & Optoelectronics Progress, 2020, 57(9): 091405

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Jul. 26, 2019

    Accepted: Sep. 27, 2019

    Published Online: May. 6, 2020

    The Author Email: Wu Meiping (wmp169@jiangnan.edu.cn)

    DOI:10.3788/LOP57.091405

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