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Inhibited oil coatings for anticorrosion protection of carbon steel in atmosphere containing SO2

Tsygankova L. E., Vigdorovich V. I., Shel N. V., Bernatsky P. N., Shel E. Yu.

Farby i Lakiery

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2018

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nr 1

35--41

EN

Protective effect of inhibited oil coatings has been studied against carbon steel corrosion in atmosphere containing SO2 by the impedance spectroscopy method. Initial content of SO2 in gas phase was 0,1 vol.%. Oil coatings were prepared on base of fresh Mobil-1 oil modified with oil soluble contact corrosion inhibitor (emulgin, 1-10 wt.%). Effect of exposition duration (0,25–24 h) was considered. Analysis of the kinetic regularities has been performed on base of cathodic and anodic reaction charge resistance transfer, diffusion transfer of cathodic depolarizer and double layer capacity.

PL

W artykule opisano wyniki badań efektu ochronnego inhibitujących powłok olejowych przeciw korozji stali węglowej w atmosferze zawierającej SO2 metodą spektroskopii impedancyjnej. Początkowa zawartość SO2 w fazie gazowej wynosiła 0,1% obj. Powłoki olejowe zostały sporządzone na bazie oleju Mobil-1 modyfikowanego kontaktowym inhibitorem korozji rozpuszczalnym w oleju (emulgin, 1-10% mas.). Badano wpływ czasu ekspozycji (0,25–24 h). Analiza prawidłowości kinetycznych została przeprowadzona na podstawie katodowego i anodowego przeniesienia rezystancji ładunku, przeniesienia dyfuzji katodowego depolaryzatora i podwójnej warstwy.

2

Conservation materials on the base of synthetic oils for protection of steel against atmospheric corrosion

Tsygankova L. E., Vigdorovich V. I., Knyazeva L. G., Shel N. V., Uryadnikov A. A.

Farby i Lakiery

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2015

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nr 1

10--13

EN

Protective efficiency of the compositions on the base of fresh and waste synthetic oil Mobile-1 has been studied with respect to St3 carbon steel. The oils were thickened by additives of emulgin (5%). Corrosion tests of steel samples covered by oil compositions films were carried out in 0.5 IVI NaCl solution. Thickness of the protective films is equal to 20-30 pm. Cathodic and anodic processes proceeding on the steel surface under thin oil films have been studied. The moisture permeability of thin synthetic oil films and their viscosity-temperature characteristics were investigated. Emulsifiability of the protective compositions has been studied.

3

Utilization of wastes of vegetable oils production for preparation of protective compositions against atmospheric corrosion of steel goods

Tsygankova L. E., Uryadnikov A. A., Vigdorovich V. I., Shel N. V.

Farby i Lakiery

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2013

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nr 3

17--22

EN

Abstract. Protective coatings on base of wastes of vegetable oils production protect carbon steel against atmospheric corrosion with sufficiently high efficiency. In open site after 6 months exposition of steel samples covered by these compositions, protective effect reaches 80%. Insertion of 20% of wastes to vegetable oils (colza and sunflower-seed oils) allows to increase the protective effect by 10 %. Retardation of steel corrosion is caused by slowing down anodic reaction at the coating presence. The coatings under study are high producible because they have small thickness (20-30 |im} and their putting on steel surface does not demand preheating (temperature is 20-25°C).