Question
corrodents like oxygen and sulfur (called “passivation”).
However, passivating oxide layers sometimes accelerate the failure of the metal.
Why is this?
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Under a situation of erosion-corrosion, the protective oxide layer can be abraded, exposing the underlying metal. A new passive layer would normally readily form by oxidation and protect the metal, but if the erosion rate is sufficiently high, a protective film will not have time to form before it is eroded....