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  • Short- and long-term wettability evolution and corrosion resistance of uncoated and polymer-coated laser-textured steel surface [Elektronski vir]
    Conradi, Marjetka ...
    We present the results of one year observation of wetting and corrosion properties of nanosecond fiber laser-textured stainless steel, uncoated and coated with epoxy or FAS ... (fluoroalkylsilane)-TiO2/epoxy. A comparative study was performed on samples kept under ambient conditions and in reduced air pressure and humidity. The results show the ability to induce wettability conversion from initially superhydrophilic to final superhydrophobic state either indirectly by ageing the uncoated laser-textured surface or directly by application of FAS-TiO2/epoxy coating. The storage conditions significantly influenced the wettability development of uncoated laser-textured steel, i.e., the process of ageing was slowed down in reduced air pressure and humidity. Detailed surface chemical analysis revealed that adsorption of the organic matters from the surrounding media influences the wettability conversion and ageing. However, the ageing of the coated surfaces was not affected by the storage conditions. Corrosion stability of uncoated laser-textured surfaces was enhanced over time due to the wettability transition, depending on their morphology. Coatings represent a superior barrier over the texture and wettability with the stable long-term surface protection against aggressive media.
    Vir: Coatings [Elektronski vir]. - ISSN 2079-6412 (Vol. 9, iss. 9, Sep. 2019, f. 1-15)
    Vrsta gradiva - e-članek
    Leto - 2019
    Jezik - angleški
    COBISS.SI-ID - 1510570

    Povezava(-e):

    https://www.mdpi.com/2079-6412/9/9/592/htm
    Repozitorij Univerze v Ljubljani – RUL
    DOI

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