«XPS investigation of adsorption protective layers based on industrial inhibited oilстатья
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Дата последнего поиска статьи во внешних источниках: 28 октября 2020 г.
Аннотация:The X-ray photoelectron spectra of steel surface covered with a protective layer of industrial oil with different content of nitrated oil as an inhibiting additive have been studied in the temperature range from room temperature to 200°C. It has been shown that the formation of a strong protective layer takes place due to the formation of donor–acceptor bonds between iron and nitrogen atoms. Upon the action of temperature on a sample in the spectrometer chamber (in vacuum) with simultaneous recording the X-ray photoelectron spectra, no changes in the character of the bond of the protective layer and substrate have been revealed. Corrosion tests show that after heating of the samples in a muffle furnace, strengthening of the protective layer and improvement of its protective properties take place. The corrosion rate of the layers containing nitrated oil decreases by a factor of 1.5–2.5 in comparison with that of the layers containing the standard conservation lubricant K-17.