Editing Corrosion (section)

== High-temperature corrosion ==
{{See also|Thermal oxidation}}
[[High-temperature corrosion]] is chemical deterioration of a material (typically a metal) as a result of heating. This non-galvanic form of corrosion can occur when a metal is subjected to a hot atmosphere containing oxygen, sulfur ("[[sulfidation]]"), or other compounds capable of oxidizing (or assisting the oxidation of) the material concerned. For example, materials used in aerospace, power generation, and even in car engines must resist sustained periods at high temperature, during which they may be exposed to an atmosphere containing the potentially highly-corrosive products of combustion.

Some products of high-temperature corrosion can potentially be turned to the advantage of the engineer. The formation of oxides on stainless steels, for example, can provide a protective layer preventing further atmospheric attack, allowing for a material to be used for sustained periods at both room and high temperatures in hostile conditions. Such high-temperature corrosion products, in the form of [[compacted oxide layer glaze]]s, prevent or reduce wear during high-temperature sliding contact of metallic (or metallic and ceramic) surfaces. [[Thermal oxidation]] is also commonly used to produce controlled oxide nanostructures, including [[nanowires]] and thin films.