Chinese Journal of Lasers, Volume. 49, Issue 8, 0802002(2022)

Microstructure and Properties of CoCrFeMnNiTix High-Entropy Alloy Coating by Laser Cladding

Hao Liu1...2, Qiang Gao1, Jiaxiang Man1,2,*, Xiaojia Li1, Haifeng Yang1 and Jingbin Hao1 |Show fewer author(s)
Author Affiliations
  • 1China University of Mining and Technology, School of Mechanical and Electrical Engineering, Xuzhou, Jiangsu 221116, China
  • 2Jiangsu Collaborative Innovation Center of Intelligent Mining Equipment, Xuzhou, Jiangsu 221116, China
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    Figures & Tables(15)
    XRD pattern of CoCrFeMnNiTix high-entropy alloy coatings
    FSEM images of CoCrFeMnNiTix high-entropy alloy coatings. (a) Ti0.25;(b) Ti0.50;(c) Ti0.75;(d) Ti1.00
    Atom-pair mixing enthalpy, atomic radius and Pauling electronegativityof element in CoCrFeMnNiTix HEA coatings system
    Elemental mapping of Ti0.25 and Ti0.50 high-entropy alloy coatings. (a) Ti0.25;(b) Ti0.50
    Microhardness of CoCrFeMnNiTix high-entropy alloy coatings
    Potentiodynamic polarization curves of CoCrFeMnNiTix high-entropy alloy coatings
    Electrochemical corrosion parameters of CoCrFeMnNiTix high-entropy alloy coatings
    Corrosion morphology of high-entropy alloy coatings. (a) CoCrFeMnNi; (b) Ti0.25;(c) Ti0.50;(d) Ti0.75;(e) Ti1.00
    Friction coefficient of CoCrFeMnNiTix high-entropy alloy coatings. (a) Friction coefficient curve; (b) average friction coefficient
    Wear results of CoCrFeMnNiTix high-entropy alloy coatings. (a) Worn profile; (b) wear rate
    Worn morphology of CoCrFeMnNiTix high-entropy alloy coatings. (a)(c) Ti0.50;(d)(f) Ti0.75;(g)(i) Ti1.00
    • Table 1. Results of energy spectrum analysis of CoCrFeMnNiTix high-entropy alloy coatings

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      Table 1. Results of energy spectrum analysis of CoCrFeMnNiTix high-entropy alloy coatings

      CoatingRegionTest pointAtomic fraction /%
      CTiCrMnFeCoNi
      Ti0.25PA61.238.093.092.9319.042.842.77
      DRB42.400.864.894.1838.165.094.42
      Ti0.50PA53.4111.422.492.3525.762.312.27
      DRB31.641.343.963.6351.704.253.49
      IRC33.402.104.184.2847.704.373.97
      Ti0.75PA50.4415.902.222.1025.552.061.73
      DRB32.301.773.773.5651.323.813.54
      IRC36.085.463.383.7942.744.294.26
      Ti1.00PA51.1827.021.231.0117.960.890.72
      DRB43.974.272.322.4442.562.212.23
    • Table 2. Electrochemical corrosion parameters of high-entropy alloy coatings

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      Table 2. Electrochemical corrosion parameters of high-entropy alloy coatings

      CoatingIcorr /A·cm-2Ecorr /V
      CoCrFeMnNi7.36×10-6-0.466
      Ti0.254.60×10-6-0.490
      Ti0.507.50×10-6-0.474
      Ti0.756.78×10-6-0.475
      Ti1.006.32×10-6-0.582
    • Table 3. Elemental distribution of worn scar of CoCrFeMnNiTix high-entropy alloy coatings

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      Table 3. Elemental distribution of worn scar of CoCrFeMnNiTix high-entropy alloy coatings

      CoatingTest pointMass fraction /%
      CNOSiTiCrMnFeCoNi
      Ti0.25A4.790.6020.021.281.879.499.9231.5510.3310.13
      B6.6501.000.221.7611.8712.3539.1413.7913.20
      C7.3105.430.192.5411.7711.4835.7013.2312.36
      Ti0.50A150.6432.663.611.775.946.0521.496.746.10
      B5.6403.270.0721.729.098.8932.979.199.17
      C7.88013.400.242.579.689.7734.4810.8811.09
      Ti1.00A3.400.4734.402.5211.775.675.3325.185.775.51
      B5.5102.270.135.779.449.7545.3710.6211.13
      C18.03013.100.391.776.184.2042.936.846.56
    • Table 4. Calculation results of average temperature and flash temperature of CoCrFeMnNiTix high-entropy alloy coatings

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      Table 4. Calculation results of average temperature and flash temperature of CoCrFeMnNiTix high-entropy alloy coatings

      CoatingAn /mm2F¯ V¯ NTb /KTf /K
      CoCrFeMnNi1.83×10-20.1670.121854360.43384.41
      Ti0.250.63×10-20.4743.201298427.48470.87
      Ti0.502.51×10-20.12103.023068350.14365.66
      Ti0.751.76×10-20.1769.761893366.57392.25
      Ti1.001.40×10-20.2165.692001356.02375.23
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    Hao Liu, Qiang Gao, Jiaxiang Man, Xiaojia Li, Haifeng Yang, Jingbin Hao. Microstructure and Properties of CoCrFeMnNiTix High-Entropy Alloy Coating by Laser Cladding[J]. Chinese Journal of Lasers, 2022, 49(8): 0802002

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    Paper Information

    Category: laser manufacturing

    Received: Jun. 16, 2021

    Accepted: Aug. 3, 2021

    Published Online: Mar. 25, 2022

    The Author Email: Man Jiaxiang (4841@cumt.edu.cn)

    DOI:10.3788/CJL202249.0802002

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