Influence of full-scale climatic tests on the properties of aluminum alloys in zones of river and marine water mixture

Within nine months, comprehensive studies were conducted on the effect of full-scale climatic tests on the properties of samples of aluminum alloy AMg6 when fully submerged in the estuary region of the Don River (the basin of the Sea of Azov) at two stations. The features of the formation of micro- and macro-fouling communities on experimental plates at one, three, six and nine months after the start of the experiment are shown. It is shown that microfouling communities on the experimental plates begin to form within a month of exposure. Diatoms were the background-forming species during the entire practical period of the study. Single macrozoobenthos organisms begin to appear on the samples after three months and only at second station. After six months, macro-fouling organisms are fixed on plates at both stations. As the exposure period increases, the number and biomass of macro-foulers increases. The corrosion resistance assessment of the samples revealed the absence of intercrystalline corrosion during the entire test period in water, at both stations, as well as pitting corrosion during the first six months of exposure.