Oxidation
Dry corrosion of metals - Industrial cases: oxidation, carburation

Oxidation is the most commonly encountered mode of dry corrosion. As presented in theoretical articles, ensuring a satisfactory service life (often $t\gg 1000\text{h}$) at temperatures above 550°C, requires promoting the formation of one of the following protective layers: chromine (Cr₂O₃), alumina (Al₂O₃) or silica (SiO₂) in which metal and oxygen diffusion are low enough to guarantee an acceptable corrosion rate. Under isothermal conditions, Cr₂O₃ layers will be protective up to 1,000-1,100°C, Al₂O₃ layers up to 1,400°C and SiO₂ layers up to around 1,700°C