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
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
Included in
Materials Chemistry Commons, Materials Science and Engineering Commons, Physical Chemistry Commons, Power and Energy Commons
