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http://dx.doi.org/10.1016/j.net.2017.02.007

Corrosion behavior induced by LiCl-KCl in type 304 and 316 stainless steel and copper at low temperature  

Sim, Jee-Hyung (Department of Nuclear Engineering, Hanyang University)
Kim, Yong-Soo (Department of Nuclear Engineering, Hanyang University)
Cho, Il-Je (Department of Nuclear Engineering, Hanyang University)
Publication Information
Nuclear Engineering and Technology / v.49, no.4, 2017 , pp. 769-775 More about this Journal
Abstract
The corrosion behavior of stainless steel (304 and 316 type) and copper induced by LiCl-KCl at low temperatures in the presence of sufficient oxygen and moisture was investigated through a series of experiments (at $30^{\circ}C$, $40^{\circ}C$, $60^{\circ}C$, and $80^{\circ}C$ for 24 hours, 48 hours, 72 hours, and 96 hours). The specimens not coated on one side with an aqueous solution saturated with LiCl-KCl experienced no corrosion at any temperature, not even when the test duration exceeded 96 hours. Stainless steel exposed to LiCl-KCl experienced almost no corrosion below $40^{\circ}C$, but pitting corrosion was observed at temperatures above $60^{\circ}C$. As the duration of the experiment was increased, the rate of corrosion accelerated in proportion to the temperature. The 316 type stainless steel exhibited better corrosion resistance than did the 304 type. In the case of copper, the rate of corrosion accelerated in proportion to the duration and temperature but, unlike the case of stainless steel, the corrosion was more general. As a result, the extent of copper corrosion was about three times that of stainless steel.
Keywords
Copper; Pitting Corrosion; Pyroprocessing; Stainless Steel;
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Times Cited By KSCI : 2  (Citation Analysis)
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