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  • Influence of aging on surface properties of laser-textured and epoxy/TiO [sub] 2 coated stainless steel [Elektronski vir]
    Conradi, Marjetka ...
    This work presents the results of a few - month observation of wetting and corrosion properties of fiber - laser - textured (SP-020P-A-HS-S-A-Y) stainless steel AISI 316L. The samples were prepared ... either uncoated by varying the distance between laser - produced micro-channels leading to different surface roughnesses or laser - textured and coated with epoxy resin, or with epoxy resin filled with FAS - TiO2 nanoparticles (epoxy/FAS - TiO2). We performed a comparative study on the samples kept under ambient conditions and in conditions with reduced air pressure and humidity. Optical profilometry and scanning electron microscopy were used to analyze the average surface roughness and morphology of laser - textured steel surfaces. Contact angles were monitored on a daily basis for all samples under ambient conditions and in conditi ons with reduced air pressure and humidity. Potentiodynamic measurements were performed on fresh - prepared and aged uncoated and coated laser - textured samples. The results have shown that superhydrophobicity of steel can be achieved either indirectly by agi ng the laser - textured surface or directly by application of the epoxy/FAS - TiO 2 coating. Ambient conditions have a significant impact on changes of wettability of laser - textured steel without coatings, but they do not affect the aging of coated laser - textur ed surfaces. Coated surfaces show improved corrosion resistance compared to uncoated laser - textured surfaces.
    Source: Program in knjiga povzetkov [Elektronski vir] = Program and book of abstracts (F. 35)
    Type of material - conference contribution
    Publish date - 2018
    Language - english
    COBISS.SI-ID - 16285467

    Link(s):

    http://mit.imt.si/Revija/izvodi/mit184/BookOfAbstracts_26ICM&T.pdf

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