Electrochemical Property Study of Water-Wall Tube 20G in SO₄^2- Medium at Room Temperature

Abstract:

In the article, the effect of SO₄^2- on the corrosion behavior of boiler water-wall material 20G under the equilibrium phosphate treatment (EPT) was studied by a series of electrochemical experiments at room temperature. Electrodes AC impedance value (Rp) was used to evaluate the corrosion resistance of the material. The experiment results show that, SO₄^2- ion is aggressive anion; water-wall tube material 20G has certain sensitive corrosion to the SO₄^2- . The 20G electrode AC impedance value decreases with the increase of the SO₄^2-’s concentration and the material corrosion resistance reduces.

• Periodical: Advanced Materials Research (Volume 676)
• Pages: 31-34
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.676.31
• Online since: March 2013
• Authors: Mao Dong Li, Xue Ying Tang, Yu Hui Du, Juan Liu, Jun Ming Zhao, Zhi Ping Zhu
• Keywords: 20g, Corrosion, Electrochemical Method, Electrode AC Impedance, SO₄^2-

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