Thermodynamic basis of antagonistic effects of oxygen and sulphur on corrosion of passivating metals
Source abstract
Abstract
Abstract A thermodynamic basis is used to explain why some metals are prone to develop a resistant passivation layer whereas some are subject to S-induced corrosion. We revisit the correlations between formation enthalpies of adsorbed (2D) and bulk (3D) compounds, both for the M–O and the M–S systems. Then we plot S adsorption enthalpy versus O adsorption enthalpy. This plot allows us to classify the various metals according to their capacity to adsorb rather O or S. Applied to corrosion science and engineering, this work should help predicting the resistance of metals and alloys to corrosion induced by environmental sulphur.
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Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Hydrogen embrittlement and corrosion behaviors in metals · Concrete Corrosion and Durability
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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