Initial Corrosion Behavior of Copper Inside Air Conditioner Condensers in Humid and Hot Marine Atmospheric Environments
This paper uses scanning electron microscopy,electrochemical testing and Fourier transform infrared spectroscopy to study the corrosion behavior and mechanism of copper exposed for different periods inside the outdoor units of air conditioner of on-site empirical experiments.The results indicate that the severity of the internal service environment of the air conditioner unit is significantly lower than that of the external natural atmospheric environment.After 7-11 months of exposure to the copper,the dense protective corrosion product Cu2O on the copper surface undergoes a transformation,leading to a decrease in the protective properties of the corrosion product.The corrosion rate of the sample shows a trend of first decreasing and then increasing.
pure copperair conditioner external unitmarine atmospheric environmentcorrosion rate
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