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http://dx.doi.org/10.14773/cst.2022.21.5.327

Effect of Water Impingement Conditions on the Degradation of Epoxy Coatings in Tap Water  

Kim, D.H. (Materials Research Centre for Energy and Clean Technology, School of Materials Science and Engineering, Andong National University)
Yoo, Y.R. (Materials Research Centre for Energy and Clean Technology, School of Materials Science and Engineering, Andong National University)
Kim, Y.S. (Materials Research Centre for Energy and Clean Technology, School of Materials Science and Engineering, Andong National University)
Publication Information
Corrosion Science and Technology / v.21, no.5, 2022 , pp. 327-339 More about this Journal
Abstract
The water-jet technique started by Bridgman can cut metal and alloys without harmful gas and fume. However, while this technique is convenient to cut metals and alloys, in the case of coated pipe, water jet induces the degradation of coatings on the pipes, and may facilitate structural failure, leakage, and loss of products. While there are many reports on the effect of water jet on cut metals and the damage of metallic materials, research on the effect of water impingement on the epoxy coatings has been little studied. In this work, we therefore control the velocity of water jet, distance between nozzle and specimen, and water temperature, and discuss the effect of water impingement on the epoxy coatings. Increasing water velocity and water temperature and reducing nozzle distance increased the degradation rates of three epoxy coatings were increased. Among three test parameters - water velocity, nozzle distance and water temperature, water temperature was relatively effective to increase the degradation rate of epoxy coatings.
Keywords
Epoxy coating; Water impingement; Velocity; Nozzle distance; Temperature;
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Times Cited By KSCI : 6  (Citation Analysis)
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