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2019•IOP Conference Series Earth and Environmental ScienceOpen access

Initial Corrosion Behavior of Pure Copper in Atmospheric Environment

Fengjie Yan, Xingeng Li, Bo Jiang, Deyuan Lin, Min Fu, Wenjing Li

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Abstract

Abstract The corrosion behavior of pure copper with sodium chloride deposition and without sodium chloride deposition in atmospheric environment was studied by 500h environmental corrosion test and linear polarization test in laboratory, as well as characterization of corrosion products by SEM and XRD. The results showed that pure copper displayed good corrosion resistance in inland atmospheric environment without pollution. After depositing NaCl salt to the surface of pure copper, the corrosion current density increases sharply and plenty of corrosion products is formed on the surface of the sample, consisting of CuO, Cu2O and CuSO4·H2O.

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Abstract The corrosion behavior of pure copper with sodium chloride deposition and without sodium chloride deposition in atmospheric environment was studied by 500h environmental corrosion test and linear polarization test in laboratory, as well as characterization of corrosion products by SEM and XRD. The results showed that pure copper displayed good corrosion resistance in inland atmospheric environment without pollution. After depositing NaCl salt to the surface of pure copper, the corrosion current density increases sharply and plenty of corrosion products is formed on the surface of the sample, consisting of CuO, Cu2O and CuSO4·H2O.

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Available abstract

Abstract The corrosion behavior of pure copper with sodium chloride deposition and without sodium chloride deposition in atmospheric environment was studied by 500h environmental corrosion test and linear polarization test in laboratory, as well as characterization of corrosion products by SEM and XRD. The results showed that pure copper displayed good corrosion resistance in inland atmospheric environment without pollution. After depositing NaCl salt to the surface of pure copper, the corrosion current density increases sharply and plenty of corrosion products is formed on the surface of the sample, consisting of CuO, Cu2O and CuSO4·H2O.

Key concepts: Corrosion, Copper, Erosion corrosion of copper water tubes, Chloride, Materials science, Polarization (electrochemistry), Metallurgy, Deposition (geology)

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