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JIANG Yi-kui, GE Hong-hua, XUE Hui, YUAN Qun, MENG Xin-jing, ZHAO Yu-zeng, LIAO Qiang-qiang. Corrosion Behavior of Brass with SO2 Pollutants Deposited on Surface in Atmosphere[J]. Corrosion & Protection, 2017, 38(1): 1-5,61. DOI: 10.11973/fsyfh-201701001
Citation: JIANG Yi-kui, GE Hong-hua, XUE Hui, YUAN Qun, MENG Xin-jing, ZHAO Yu-zeng, LIAO Qiang-qiang. Corrosion Behavior of Brass with SO2 Pollutants Deposited on Surface in Atmosphere[J]. Corrosion & Protection, 2017, 38(1): 1-5,61. DOI: 10.11973/fsyfh-201701001

Corrosion Behavior of Brass with SO2 Pollutants Deposited on Surface in Atmosphere

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  • Received Date: September 01, 2015
  • The corrosion behavior of brass with SO2 pollutants deposited on surface in atmospheric environment was investigated by electrochemical impedance spectroscopy (EIS) and scanning Kelvin probe (SKP) techniques. The corrosion products were characterized by XRD. The results showed that the corrosion resistance of brass with SO2 pollutants deposited on surface was much smaller than that without surface deposition of SO2 pollutants. The more the surface deposition of pollutants SO2, the smaller the corrosion resistance. With the extension of corrosion time, more and more corrosion products were produced on the surface of brass. The surface Volta potential shifted positively and the activity of corrosion reaction reduced. The main components of corrosion products of brass were ZnSO4·7H2O, CuSO4·3H2O, ZnO, and a small amount of Zn(OH)2, Cu(OH)2 and CuO.
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