期刊
MATERIALS CHARACTERIZATION
卷 177, 期 -, 页码 -出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.matchar.2021.111177
关键词
Zinc; High-temperature corrosion; Crack growth rate; Oxide; Reactor conditions
类别
资金
- School of Nuclear Science and Engineering of Shanghai Jiao Tong University
- School of Mechanical and Power Engineering of East China University of Science and Technology
The study found that adding zinc to high-temperature borated and lithiated water can improve the corrosion resistance of 316L stainless steel, reduce crack growth rate, and modify the chemical composition of oxide films.
Zinc was added to high-temperature borated and lithiated water and its effect on the oxide film formation, electrochemical behavior and crack growth rate of 316 L stainless steel was investigated. The actual concentrations of zinc in the coolant solution at 300 degrees C and 350 degrees C were determined by ICP-Mass spectrometry. Zinc improved the electrochemical corrosion parameters of steel and reduced the crack growth rate of the sample by more than 13 times. Zinc also reduced the thickness of the formed oxide layers on steel and modified the chemical composition of the oxides to a mainly zinc and iron rich spinel.
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