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http://dx.doi.org/10.5695/JKISE.2018.51.5.316

Variation of Corrosion Properties on the Steel Surface by Environmental Changes in Shihwa Lake  

Park, Jun-Mu (Division of Marine Engineering, Korea Maritime and Ocean University)
Lee, Seung-Hyo (Division of Marine Engineering, Korea Maritime and Ocean University)
Woo, Sang-Kyun (Korea Electric Power Corporation Research Institute)
Chu, In-Yeop (Korea Electric Power Corporation Research Institute)
Lee, Myeong-Hoon (Division of Marine Engineering, Korea Maritime and Ocean University)
Publication Information
Journal of the Korean institute of surface engineering / v.51, no.5, 2018 , pp. 316-324 More about this Journal
Abstract
Harsh seawater environment is subdivided into marine atmosphere, splash zone, tidal zone, submerged zone and bottom of sea depending on the exposed part. Since corrosion rate depends on the conditions of the exposed parts, proper protection and maintenance for each parts are essential for long-term use of steel structures in seawater environment. For steel structures which were installed in Shiwha Lake, a special maintenance system is required to guarantee its long-term durability and safety. As the tidal power plant has recently been operated, the salinity has risen due to the rapid influx of seawater upstream into Sihwa Lake and the corrosion tendency of the structure is variable according to the water level fluctuation. In this study, corrosion properties of steel structures under water level fluctuation was evaluated by corrosion rate measurement, visual inspection and natural potential measurement and their durability and life management were discussed in view of the effect of variation in of seawater level fluctuations in Shihwa Lake.
Keywords
Shiwha lake; Water level fluctuation; Corrosion properties; Corrosion of steel;
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