Nanosecond laser fabrication of superhydrophobic surface on 316L stainless steel and corrosion protection application

Lu, Yao; Guan, Yanchao; Li, Yuan; Yang, Lijun; Wang, Maolu; Wang, Yang

doi:10.1016/j.colsurfa.2020.125259

Cited by 67 publications

(25 citation statements)

References 40 publications

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“…It is mainly due to the fact that the laser fluence exceeding the theoretical threshold considerably, which triggers the phase change of the substrate, followed by producing the ring-shaped microstructures. This is supported by the previous results [46]. Notably, there are many craters in each laser cleaned surface, as noted in Fig.…”

Section: Surface Morphologysupporting

confidence: 91%

A characterization of laser cleaning painting layer from steel surface based on thermodynamic model

Ding

Wang

et al. 2021

Int J Adv Manuf Technol

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In this study, the environmentally friendly nanosecond ultraviolet (UV) laser is innovatively employed laser cleaning to remove the painting layer from the AH36 steel substrate. The feasibility of UV laser cleaning the painting layer is innovatively proposed and it has been calculated by the model theoretically, followed by elaborating the prominent interaction mechanism of UV laser exactly. The initial cleaning threshold and completely cleaning threshold are 2 J/cm 2 and 5 J/cm 2 , respectively. Afterwards, the UV laser cleaned surface quality is evaluated by the scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), optical microscopy (OM) and optical profiler (OP), respectively. The mechanical properties have enhanced dramatically after laser cleaning and characterized by the Vickers hardness tester and universal testing machine. By varying laser fluences (2, 5, 7 J/cm 2 ) during laser cleaning, microstructures registering various sizes of corrugated shaped, craters and ring-shaped could be acquired. In addition, the mechanical properties analysis including rapid melting, quenching and dislocation density effects illustrates that laser cleaning could effectively increase surface microhardness, tensile strength and bending strength. Thus, laser cleaning method has emerged as a favourable means to strip painting layer in lieu of traditional methods for marine industry as well as this study could promote the development of laser cleaning in the field of marine engineering.

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Section: Surface Morphologysupporting

confidence: 91%

A characterization of laser cleaning painting layer from steel surface based on thermodynamic model

Ding

Wang

et al. 2021

Int J Adv Manuf Technol

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“…The electrochemical tests revealed that the corrosion resistance of the biomimetic super-hydrophobic surfaces was effectively enhanced. Additionally, the laser-textured super-hydrophobic surfaces showed excellent self-cleaning performance [31] . The typical super-hydrophobic surface with a high WCA of 158.2˚ was successfully fabricated in the Liu's group via laser irradiation followed by chemical etched and stearic acid modification on AZ31 magnesium alloy surfaces.…”

Section: Introductionmentioning

confidence: 98%

The Study on the Anti-corrosion Performance of NiTi Alloy in Human Body Solution with the Fabricating Processes of Laser Irradiation and PDMS Modification

et al. 2021

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This paper presents a new and safe method of fabricating super-hydrophobic surface on NiTi Shape Memory Alloy (SMA), which aims to further improve the corrosion resistance performance and biocompatibility of NiTi SMA. The super-hydrophobic surfaces with Water Contact Angle (WCA) of 155.4° ± 0.9° and Water Sliding Angle (WSA) of 4.4° ± 1.1° were obtained by the hybrid of laser irradiation and polydimethylsiloxane (PDMS) modification. The forming mechanism was systematically revealed via Scanning Electron Microscopy (SEM) and X-ray Photoelectron Spectroscopy (XPS). The anti-corrosion of samples was investigated in Simulated Body Fluid (SBF) via the potentiodynamic polarization (PDP) and Electrochemical Impedance Spectroscopy (EIS) tests. PDMS super-hydrophobic coatings showed superior anti-corrosion performance. The Ni ions release experiment was also conducted and the corresponding result demonstrated that the super-hydrophobic samples effectively inhibited the release of Ni ions both in electrolyte and SBF. Besides, biocompatibility was further analyzed, indicating that the prepared super-hydrophobic surfaces present a huge potential advantage in biocompatibility.

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“…Depending on the nature of the substrate's material, various techniques have been used to impart rough structures onto surfaces such as dip coating [12], laser ablation [13][14][15], glancing-angle deposition (GLAD) [16], chemical vapor deposition (CVD) [17], Electrospinning [18], sol-gel processing [19], spray coating [20,21], self-assembly and transferred [22],…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic Candle Soot Coating Directly Deposited on Aluminum Substrate with Enhanced Robustness

2022

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In this study, superhydrophobic surfaces were developed by using a simple and environmentally friendly technique. The nano-network of candle soot (CS) as the byproduct of incomplete combustion of paraffin candle was directly coated onto both smooth and micro-rough aluminum (Al) substrates for various time periods of deposition. The simple technique of mechanical sanding was used to impart micro-rough structures onto Al substrates using different sandpaper grit sizes. The scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), atomic force microscopy (AFM), and X-ray diffraction (XRD) techniques were used to characterize the morphology and chemistry of the prepared surfaces. Wetting analysis of the prepared surfaces was performed by measuring both water droplet contact angle (CA) and sliding angle (SA). The prepared coatings showed superhydrophobic properties with high CAs and low SAs for CS surfaces coated on roughened Al substrates. Moreover, the robustness of the prepared surfaces was tested by continuous impingement of water droplets onto their surfaces from various heights. Post-testing wetting analysis showed that the micro-nano surfaces of candle soot coated on micro roughened Al substrates demonstrated improved robustness. These surfaces could be useful for self-cleaning, anti-corrosion and anti-icing applications.

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Nanosecond laser fabrication of superhydrophobic surface on 316L stainless steel and corrosion protection application

Cited by 67 publications

References 40 publications

A characterization of laser cleaning painting layer from steel surface based on thermodynamic model

A characterization of laser cleaning painting layer from steel surface based on thermodynamic model

The Study on the Anti-corrosion Performance of NiTi Alloy in Human Body Solution with the Fabricating Processes of Laser Irradiation and PDMS Modification

Superhydrophobic Candle Soot Coating Directly Deposited on Aluminum Substrate with Enhanced Robustness

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