Abstract
The possibility of increasing the stability of SHP layers formed from ethanol solutions of oleic acid (OlA) by layer-by-layer modification of the laser-textured surface of the alloy D16 by ethanol solutions of trialkoxysilanes (vinyltrimethoxysilane (VS), octyltriethoxysilane (OTES)) is discussed. It is shown that OTES is more effective than VS in achieving the SHF state of the alloy surface. The protective ability of the coatings was evaluated by polarization measurements in 0,05 M NaCl water solution and corrosion tests in a salt spray chamber. It is shown that the two-stage modification of the alloy surface in solutions of OTES and OlA at Cin = 10 mmol / l, allows one to surpass the protective capacity of individual components, and τcor = 498 h. It is important that the SHP properties of the coating are preserved for 240 hours of testing under salt spray chamber conditions.
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