Aluminum alloy corrosion prediction model of power transmission line considering the influence of electric field

Corrosion issues in the field of electricity often occur within an electric field environment, where the corrosion process is influenced by both the applied electric field and atmospheric conditions. However, current research on corrosion problems in the electricity sector mainly focuses on atmospheric corrosion of metals, with little attention given to the combined effects of the applied electric field and atmospheric environment on metal corrosion. This paper establishes a corrosion prediction model considering the influence of the electric field. Taking 6061 aluminum alloy as an example, the corrosion characteristics of $\mathbf{6 0 6 1}$ aluminum alloy are obtained without an applied electric field, and with applied electric fields of $20 \mathrm{kV} / \mathrm{m}$. The research results indicate that the corrosion rate of aluminum alloy increases initially and then decreases with the extension of corrosion time, and the corrosion rate of aluminum alloy under an applied electric field is greater than that of aluminum alloy without an electric field during the same period.