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http://dx.doi.org/10.14773/cst.2022.21.1.68

Effect of Sealing Treatment on Solid Particle Impingement Erosion of Al-Zn-Zr Thermal Spray Coating Layer  

Heo, Ho-Seong (Graduate school, Mokpo national maritime university)
Kim, Seong-Jong (Division of marine engineering, Mokpo national maritime university)
Publication Information
Corrosion Science and Technology / v.21, no.1, 2022 , pp. 68-76 More about this Journal
Abstract
Several technologies are employed to protect substrates from corrosion and erosion damage. In particular, arc thermal spray coating technology is widely used as anti-corrosive technology for steel and concrete structures and is applied to offshore plants and petrochemical and drilling facilities. In this investigation, solid particle impingement erosion experiments were performed on an arc thermal spraying-coated specimen using 85% Al-14% Zn-1% Zr wire rod in KR-RA steel. This study investigated the effect of fluorosilicone sealing on the erosion resistance characteristics of the thermal spray coating layer. The erosion rates of the thermal spray-coated and sealed specimens were 4.1×10-4 and 8.5×10-4, respectively. At the beginning of the experiment, the fluorosilicone sealant was almost destroyed by the impact of the solid particles. The destruction time for the coating layer was 10 minutes for the thermal spray-coated specimen and 13 minutes for the sealed specimens, indicating that the sealed specimens had better erosion resistance characteristics to solid particle impingement.
Keywords
Thermal spraying; Solid particle impingement; Erosion; Fluorosilicone; Sealing;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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