Study of Corrosion Behavior of Copper in Neutral Aqueous Solution

According to the corrosion and scaling problems of copper in neutral aqueous solution, study corrosion behavior of copper in simulated water by using rotating hang piece of corrosion test and electrochemical method. Experiments show that flow velocity and temperature have an effect on the corrosion of cupper. Along with the increase of temperature and velocity, the diffusion of dissolved oxygen in solution speed up, the charge transfer resistance reduction, leading to the corrosion rate of copper faster. But in the high-temperature region, solubility of oxygen becomes the dominant factors of copper corrosion, and the rise of temperature reduces the solubility. Thus in the high-temperature region appeared copper corrosion rate of decrease phenomenon.