研究目的
To modify the wettability characteristics of AISI 430 steel using a nanosecond pulsed fiber laser and analyze the stability of hydrophobic and hydrophilic surfaces created by laser treatment.
研究成果
The study demonstrated that laser structuring can effectively modify the wettability of AISI 430 steel, but the hydrophobic properties achieved are not stable under water exposure. High humidity can obstruct the adsorption of organic compounds, preserving hydrophilic surfaces. Additional protection is required for industrial use of these structures.
研究不足
The hydrophobic surfaces created by laser treatment were found to be unstable under continuous influence of water, indicating a need for additional protection or coating for industrial applications.
1：Experimental Design and Method Selection:
A nanosecond pulsed fiber laser was used to create various surface morphologies on AISI 430 steel samples by varying laser intensity and overlapping parameters.
2：Sample Selection and Data Sources:
AISI 430 steel plates were used as samples.
3：List of Experimental Equipment and Materials:
Nanosecond pulsed ytterbium fiber laser, Zeiss Axio Imager A1M optical microscope, Zeiss Merlin scanning electron microscope, X-Ray diffractometer ARL X’TRA, LED arrangement source, high-resolution CCD camera ToupCam, PM-10 muffle furnace, Extech hygrothermometer psychrometer, ultrasonic bath (Sapphire).
4：Experimental Procedures and Operational Workflow:
Samples were irradiated with the laser under different conditions, analyzed with XRD, kept in ambient air or subjected to low-temperature annealing, and cleaned in an ultrasonic bath.
5：Data Analysis Methods:
Contact angles were measured using Digimizer software, and XRD data were processed using PDXL software and PDF-2 database.
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Zeiss Axio Imager A1M optical microscope
Axio Imager A1M
Zeiss
Used for obtaining micro images of the structured surfaces of samples.
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Zeiss Merlin scanning electron microscope
Merlin
Zeiss
Used for studying the morphology of the surfaces.
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nanosecond pulsed ytterbium fiber laser
Laser Center Co., Ltd., Russia
Used for modifying the wettability characteristics of AISI 430 steel by creating various surface morphologies.
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X-Ray diffractometer ARL X’TRA
ARL X’TRA
Used for XRD analysis of phase composition.
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high-resolution CCD camera ToupCam
ToupCam
Used for measuring the wetting contact angle.
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PM-10 muffle furnace
PM-10
Used for low-temperature annealing of the samples.
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Extech hygrothermometer psychrometer
Extech
Used for measuring the air humidity.
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ultrasonic bath
Sapphire
Used for cleaning the samples.
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