Development of methods for inhibiting the corrosion of metals and new options for their application: a review. Part III-2-1. Superhydrophobization of the surfaces of aluminum and its alloys with organic solutions of alkyl carboxylates

• Yu.I. Kuznetsov and A.M. Semiletov

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31-4, Leninsky prospect, 119071 Moscow, Russia

Abstract: This review analyzes creation methods of superhydrophobic (SHP) surfaces on aluminum alloys. Alkyl carboxylates, especially their higher homologues, well known as effective passivators and corrosion inhibitors for metals, including aluminum alloys. Unsurprisingly, they also find application in the formation of superhydrophobic coatings on metal surfaces after the creation a polymodal roughness, often by adsorbing from organic solutions. The polymodal roughness is achieved by etching metal surfaces in alkali solutions (0.1–1.0 M and 10% NaOH), acidic mixtures (HNO₃+H₂O₂, H₃PO₄+dichromate) or in boiling water, Ag, Ce, Cu deposition, or nanosecond laser ablation. The treatment in organic solutions of alkyl carboxylates is most often performed with stearic or lauric acid. This review discusses studies on the creation of superhydrophobic surfaces on aluminum alloys published between 2003 and 2025.

Keywords: aluminum alloys, corrosion, corrosion inhibitors, superhydrophobization, organic solution, carboxylates

Int. J. Corros. Scale Inhib., 2026, 15, no. 1, 85-106
doi: 10.17675/2305-6894-2026-15-1-4

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