The measurements of the corrosion potential and the analysis of the polarization characteristics revealed that titanium VT1-0 with a nano- and submicrograin structure exhibits higher electrochemical activity in a 0.9% NaCl solution than its macrograin analogs. The formation of anode oxide films on the surface of titanium with structures of all types in various modes, including the microarc one, reduces the respective parameters and makes them closer, but it does not eliminate the differences inherent in the original substrates.
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