Current developments of nanoscale insight into corrosion protection by passive oxide films

Abstract

Oxide passive films are a key for the durability of metals and alloys components as well as a central issue in corrosion science and engineering. Herein, we discuss current developments of the nanometer and sub-nanometer scale knowledge of the barrier properties and adsorption properties of passive oxide films brought by recent model experimental and theoretical investigations. The discussed aspects include (i) the chromium enrichment and its homogeneity at the nanoscale in passive films formed on Cr-bearing alloys such as stainless steel, (ii) the corrosion properties of grain boundaries in early intergranular corrosion before penetration and propagation in the grain boundary network, and (iii) the interaction of organic inhibitor molecules with incompletely passivated metallic surfaces. In all three cases, key issues are highlighted and future developments that we consider as most relevant are identified.

arXiv commentCurrent Opinion in Solid State and Materials Science, Elsevier, final accepted preprint

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Cited by in corpus (5)

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• Chloride-induced alterations of the passive film on 316L stainless steel and blocking effect of pre-passivation
• Passivation mechanisms and pre-oxidation effects on model surfaces of FeCrNi austenitic stainless steel
• Stainless Steel Surface Structure and Initial Oxidation at Nanometric and Atomic Scales
• A physics-informed neural network approach to the point defect model for electrochemical oxide film growth