Corrosion Behavior of Aluminum in Neutral Water Medium

According to the corrosion and scaling problems in neutral water media, the corrosion behavior of aluminum in simulated water was studied using corrosion test of rotating hang pieces and electrochemical method. The results show that the flow velocity, temperature and solution concentration ratio have a effects on the corrosion of aluminum. With the increase of temperature and velocity, the diffusion of dissolved oxygen in solution increased, the charge transfer resistance reduced, leading to the increase of the corrosion rate of aluminum faster. When the concentration of the solution increased, the concentration of the ions in the solution increased, the oxide film on metal aluminum surface was easy to be destroyed and led to corrosion, and the corrosion rate of metal aluminum increasea.