Filiform corrosion as a pressure-driven delamination process
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Updated: Jan 30, 2026

Metal Corrosion and the Efficiency of Corrosion Inhibitors in Less Conductive Media
Published on: November 3, 2018
Fabian Brau1, Stephanie Thouvenel-Romans2, Oliver Steinbock2
1Université libre de Bruxelles (ULB), Nonlinear Physical Chemistry Unit, Faculté des Sciences, CP-231, 1050 Brussels, Belgium. fabian.brau@ulb.ac.be.
Abstract:
Filiform corrosion produces long and narrow trails on various coated metals through the detachment of the coating layer from the substrate. In this work, we present a combined experimental and theoretical analysis of this process with the aim to describe quantitatively the shape of the cross-section, perpendicular to the direction of propagation, of the filaments produced. For this purpose, we introduce a delamination model of filiform corrosion dynamics and show its compatibility with experimental data where the coating thickness has been varied systematically.
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