Abstract
Electrolytic production of aluminum from cryolite–alumina melts is accompanied by considerable emissions of fluorine compounds, which promote the appearance of the atmospheric corrosion of metal surfaces of industrial objects. To determine the influence of emissions on the corrosion stability of steel and zinc, the corrosion rate is determine in atmospheric falls (water obtained during melting the samples of freshly fallen snow (the analog of rain) or old snow cover, as well as atmospheric air contaminated by anthropogenic emissions) sampled at different distances from the Bratsk and Irkutsk aluminum plants. It is established that the corrosion rate decreases with distancing from industrial areas, and it is lower for zinced iron than for steel St3 by a factor of 2–3 under the same conditions.
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