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Laser & Optoelectronics Progress, Volume. 56, Issue 24, 241403(2019)

Effect of Laser Power on Corrosion Resistance of 42CrMo Cladding Stellite-6 Coating

Chen Cui, Meiping Wu*, and Wei Cheng
Author Affiliations
  • Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment Technology, Wuxi, Jiangsu 214122, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (19)
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    Figures & Tables(8)
    Corrosion rate of substrate and Stellite-6 coating prepared at different laser powers in NaCl solution

    Fig. 1. Corrosion rate of substrate and Stellite-6 coating prepared at different laser powers in NaCl solution

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    Dynamic polarization in NaCl solution of base steel and Stellite-6 coating samples prepared at different laser powers

    Fig. 2. Dynamic polarization in NaCl solution of base steel and Stellite-6 coating samples prepared at different laser powers

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    Polarization resistance curves of base steel and Stellite-6 coating prepared at different laser powers in NaCl solution

    Fig. 3. Polarization resistance curves of base steel and Stellite-6 coating prepared at different laser powers in NaCl solution

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    Corrosion morphologies of base steel and Stellite-6 coating prepared at different powers after soaking in NaCl solution for 24 h. (a) Base steel; (b) 1500 W; (c)2000 W; (d) 2500 W; (e) 3000 W

    Fig. 4. Corrosion morphologies of base steel and Stellite-6 coating prepared at different powers after soaking in NaCl solution for 24 h. (a) Base steel; (b) 1500 W; (c)2000 W; (d) 2500 W; (e) 3000 W

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    Metallographic structures of the molten pool in cladding layer prepared at different laser powers. (a) 1500 W; (b) 2000 W; (c) 2500 W; (d) 3000 W

    Fig. 5. Metallographic structures of the molten pool in cladding layer prepared at different laser powers. (a) 1500 W; (b) 2000 W; (c) 2500 W; (d) 3000 W

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    • Table 1. Chemical composition of 42CrMo substrate

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      Table 1. Chemical composition of 42CrMo substrate

      ElementCSiMnCrMoPS
      Mass fraction /%0.38-0.450.17-0.370.5-0.80.9-1.20.15-0.25≤0.035≤0.035

    • Table 2. Chemical composition of Stellite-6 powder

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      Table 2. Chemical composition of Stellite-6 powder

      ElementCCrSiWFeMoNiMnCo
      Mass fraction /%1.1529.001.104.503.001.003.001.0Bal.

    • Table 3. Electrochemical parameters of base steel and Stellite-6 coating samples prepared at different powers in NaCl solution

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      Table 3. Electrochemical parameters of base steel and Stellite-6 coating samples prepared at different powers in NaCl solution

      SampleElectrochemical parameterPE /%
      Ecorr /VIcorr /(10-3 A·cm-2)Rp /(Ω·cm2)
      Base steel-0.39436.990666.8
      Sample 2 (1500 W)-0.29812.7502275.765.54
      Sample 3 (2000 W)-0.2889.6632863.673.88
      Sample 4 (2500 W)-0.1503.2946742.591.09
      Sample 5 (3000 W)-0.2326.8494071.981.42
      Note: Ecorr represents corrosion voltage; Icorr represents corrosion current.
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    Chen Cui, Meiping Wu, Wei Cheng. Effect of Laser Power on Corrosion Resistance of 42CrMo Cladding Stellite-6 Coating[J]. Laser & Optoelectronics Progress, 2019, 56(24): 241403

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Apr. 18, 2019

    Accepted: Jun. 5, 2019

    Published Online: Nov. 26, 2019

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

    DOI:10.3788/LOP56.241403

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology