Abstract
Phase composition and macrostructure of the surface oxide films formed during the oxidation of hot-rolled low-carbon rimming steel in air at 600°C have been investigated by standard and grazing incidence x-ray diffraction. The oxidation kinetics have been analysed by the weight change method. It has been revealed that the oxide film consists of layers of FeO, Fe 3 O 4 and Fe 2 O 3 . The latter two phases have been observed after 2 min of oxidation, whereas the first one appears only after 6 min of annealing in air at 600°C. The oxidation kinetics obeys a logarithmic law during the whole investigated time interval of annealing.
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