The laser treatment of aluminum alloy AD31 and its superhydrophobization with solutions of organic acids
https://doi.org/10.61852/2949-3412-2023-1-4-101-113
Abstract
A uniformly inhomogeneous roughness is formed on the surface of the AD31 aluminum alloy after a laser treatment. Further treatment of the alloy with ethanol solutions of octadecylphosphonic (ODPA) and stearic (SA) acids leads to superhydrophobization of the surface. The results of the kinetics of degradation of superhydrophobic (SHP) state in water and a neutral salt spray chamber indicate the high stability of ODPA films. The stability of SA films can be increased by a layer-by-layer forming with vinyltrimethoxysilane. The protective ability of the SHP coatings was estimated by polarization measurements and corrosion tests.
Supporting agencies: The study was carried out within the framework of R&D (2022-2024): "Chemical resistance of materials, protection of metals and other materials from corrosion and oxidation"
About the Author
A. M. Semiletov
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
119071
Leninsky av. 31/4
Moscow
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For citations:
Semiletov A.M. The laser treatment of aluminum alloy AD31 and its superhydrophobization with solutions of organic acids. Title in english. 2023;(4):101-113. (In Russ.) https://doi.org/10.61852/2949-3412-2023-1-4-101-113
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