Date: 20 Nov 2009

High-Temperature Gaseous Oxidation

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Abstract

So far this text has considered the corrosion of metals or alloys in aqueous environments. However, when a metal or alloy is exposed to an oxidizing gas, corrosion may occur in the absence of an electrolyte, especially at high temperatures. This phenomenon is sometimes called “dry corrosion” as opposed to “wet corrosion” which occurs in the presence of an aqueous electrolyte. Oxidizing gases include O2, SO2, H2S, H2O, and CO2 but the most common oxidant is O2.