Journal
INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
Volume 19, Issue 10, Pages 930-933Publisher
SPRINGER
DOI: 10.1007/s12613-012-0649-4
Keywords
stainless steel; molten salts; corrosion resistance; lithium; electrolysis
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Funding
- National High-Tech Research and Development Program of China [2009AA06Z102]
- National Natural Science Foundation of China [50934001, 51054004]
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The corrosion behaviors of 304SS, 316LSS, and Q235A in LiCl-KCl melts were investigated at 450A degrees C by Tafel curves and electrochemical impedance spectroscopy (EIS). 316LSS shows the best corrosion resistance behaviors among the three materials, including the most positive corrosion potential and the smallest corrosion current from the Tafel curves and the largest electron transfer resistance from the Nyquist plots. The results are in good agreement with the weight losses in the static corrosion experiments for 45 h. This may be attributed to the better corrosion resistance of Mo and Ni existing as alloy elements in 316LSS, which exhibit the lower corrosion current densities and more positive corrosion potentials than 316LSS in the same melts.
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