Electrochemical Studies of Zinc Injection into the Structure Materials of Nuclear Power Plants

Authors

Sheng-Han ZHANG
Yu TANFollow
Ke-Xin LIANG

Corresponding Author

Yu TAN(lucifertan@163.com)

Abstract

The electrochemical and semiconductor characters of oxide films formed on 304L, 316L stainless steel and alloy 600 in high temperature water with zinc addition were studied. Stress corrosion cracking and occupational radiation can be retarded effectively by zinc injection to the primary circuit of pressurized water reactor (PWR). The semiconductor characters of the materials formed by zinc injection was analyzed by Mott-Schottky curves. The surface morphology and components of the corrosion oxide layer were examined and detected by scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS). The result reveals that the smaller crystals and the complex Zn-Cr-Ni-Fe oxide were formed by zinc addition into the high temperature water. Zinc injection is a useful method to enhance the anti-corrosion ability of materials and change the semiconductor character of oxide films formed in Fe/Ni base alloys.

Graphical Abstract

Keywords

zinc addition, high temperature water, structure material, oxide film, semiconductor character

DOI Link

https://doi.org/10.61558/2993-074X.2833

Publication Date

2011-05-28

Online Available Date

2011-05-05

Revised Date

2010-12-30

Received Date

2010-09-28

Recommended Citation

Sheng-Han ZHANG, Yu TAN, Ke-Xin LIANG. Electrochemical Studies of Zinc Injection into the Structure Materials of Nuclear Power Plants[J]. Journal of Electrochemistry, 2011 , 17(2): Article 18.
DOI: 10.61558/2993-074X.2833
Available at: https://jelectrochem.xmu.edu.cn/journal/vol17/iss2/18

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