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Chinese Journal of Lasers, Volume. 48, Issue 14, 1402018(2021)

Highly Efficient Nanosecond Laser-Based Multifunctional Surface Fabrication and Corrosion Resistance Performance

Qinghua Wang1,2、*, Huixin Wang3, Zhandong Wang1,2, and Guifang Sun1,2
Author Affiliations
  • 1School of Mechanical Engineering, Southeast University, Nanjing, Jiangsu 211189, China
  • 2Jiangsu Key Laboratory of Micro-Nano Biomedical and Instrument Design and Manufacture, Nanjing, Jiangsu 211189, China
  • 3Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China
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    Process schematic of the highly efficient laser-based micro/nanostructuring superhydrophobic surface. (a) Laser surface treatment; (b) scanning trajectory; (c) chemical immersion treatment

    Fig. 1. Process schematic of the highly efficient laser-based micro/nanostructuring superhydrophobic surface. (a) Laser surface treatment; (b) scanning trajectory; (c) chemical immersion treatment

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    3D surface profiles. (a) Untreated surface; (b) laser micro/nanostructured surface

    Fig. 2. 3D surface profiles. (a) Untreated surface; (b) laser micro/nanostructured surface

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    SEM micrographs of surface structures fabricated by the existing ultra-fast laser-based surface texturing methods. (a) LIPSS structure fabricated by Cunha et al.[39]; (b) hierarchical structures fabricated by Martínez-Calderon et al.[40]; (c)(d) untreated surface; (e)(f) laser micro/nanostructured surface fabricated by the proposed method using the power intensity of 0.6 GW/cm2; (g)(h) laser micro/nanostructured surface fabricated by the proposed method using the power intensity of 8.4 GW/cm2

    Fig. 3. SEM micrographs of surface structures fabricated by the existing ultra-fast laser-based surface texturing methods. (a) LIPSS structure fabricated by Cunha et al.[39]; (b) hierarchical structures fabricated by Martínez-Calderon et al.[40]; (c)(d) untreated surface; (e)(f) laser micro/nanostructured surface fabricated by the proposed method using the power intensity of 0.6 GW/cm2; (g)(h) laser micro/nanostructured surface fabricated by the proposed method using the power intensity of 8.4 GW/cm2

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    XPS survey spectra analysis. (a) Untreated surface; (b) laser micro/nanostructured surface, the inset shows the core elemental spectrum of C element on laser micro/nanostructured surface

    Fig. 4. XPS survey spectra analysis. (a) Untreated surface; (b) laser micro/nanostructured surface, the inset shows the core elemental spectrum of C element on laser micro/nanostructured surface

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    Contact angle and roll-off angle measurement results for laser micro/nanostructured material with different laser power intensities. (a) AISI4130 low alloy steel; (b) AA6061 aluminium alloy

    Fig. 5. Contact angle and roll-off angle measurement results for laser micro/nanostructured material with different laser power intensities. (a) AISI4130 low alloy steel; (b) AA6061 aluminium alloy

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    Microhardness measurement results of laser micro/nanostructured AISI4130 low alloy steel and AA6061 aluminium alloy treated by different laser power intensities

    Fig. 6. Microhardness measurement results of laser micro/nanostructured AISI4130 low alloy steel and AA6061 aluminium alloy treated by different laser power intensities

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    Corrosion resistance of the laser micro/nanostructured surface. (a) Comparison of the polarization curves for the untreated surface and laser micro/nanostructured surface; (b) surface structures and contact angles for the laser micro/nanostructured surface before and after the electrochemical test

    Fig. 7. Corrosion resistance of the laser micro/nanostructured surface. (a) Comparison of the polarization curves for the untreated surface and laser micro/nanostructured surface; (b) surface structures and contact angles for the laser micro/nanostructured surface before and after the electrochemical test

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    Deliquescence of NaCl on horizontal untreated surface and laser micro/nanostructured surface with relative humidity of 90%. (a)--(c) Untreated surface; (d)--(f) laser micro/nanostructured surface

    Fig. 8. Deliquescence of NaCl on horizontal untreated surface and laser micro/nanostructured surface with relative humidity of 90%. (a)--(c) Untreated surface; (d)--(f) laser micro/nanostructured surface

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    Deliquescence of NaCl on laser micro/nanostructured surface inclined at an angle of ~20° with relative humidity of 90%

    Fig. 9. Deliquescence of NaCl on laser micro/nanostructured surface inclined at an angle of ~20° with relative humidity of 90%

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    Comparison of the processing efficiency between proposed method and traditional laser processing methods

    Fig. 10. Comparison of the processing efficiency between proposed method and traditional laser processing methods

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    • Table 1. Main chemical compositions of AISI4130 low alloy steel and AA6061 aluminum alloy

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      Table 1. Main chemical compositions of AISI4130 low alloy steel and AA6061 aluminum alloy

      ParameterAISI4130 low alloy steelAA6061 aluminum alloy
      FeCCrMnMoAlMgCrCuSi
      Massfraction /%97.3--98.20.28--0.330.8--1.10.4--0.60.15--0.2595.8--98.60.8--1.20.04--0.350.15--0.40.4--0.8

    • Table 2. Ecorr, Icorr and corrosion rate of the untreated surface and laser micro/nanostructured surface

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      Table 2. Ecorr, Icorr and corrosion rate of the untreated surface and laser micro/nanostructured surface

      Surface typeEcorr /VIcorr /(A·cm-2)Corrosion rate /(mm·year-1)
      Untreated-0.8137.33×10-92.54×10-5
      Laser micro /nanostructured-0.6486.67×10-117.34×10-7
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    Qinghua Wang, Huixin Wang, Zhandong Wang, Guifang Sun. Highly Efficient Nanosecond Laser-Based Multifunctional Surface Fabrication and Corrosion Resistance Performance[J]. Chinese Journal of Lasers, 2021, 48(14): 1402018

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    Paper Information

    Category: laser manufacturing

    Received: Jan. 19, 2021

    Accepted: Feb. 25, 2021

    Published Online: Jul. 5, 2021

    The Author Email: Qinghua Wang (qinghua-wang@seu.edu.cn)

    DOI:10.3788/CJL202148.1402018

    Topics

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