Study on cavitation erosion resistance and surface topologies of various coating materials used in shipbuilding industry

SangKi Chi; JinHwan Park; MinYoung Shon

Journal of Industrial and Engineering Chemistry, Vol.26, 384-389, June, 2015

DOI10.1016/j.jiec.2014.12.013 Export Citation

Study on cavitation erosion resistance and surface topologies of various coating materials used in shipbuilding industry

SangKi Chi, JinHwan Park¹, and MinYoung Shon^{1, †}

Coating and Corrosion Research Department Institute of Industrial Technology, Samsung Heavy Industries Co. Ltd., No. 80, Jangpyeong 3ro, Geoje-si 656-710, Kyungnam, Republic of Korea
¹Department of Industrial Chemistry, Pukyong National University, San 100, Yongdang-Dong, Nam-Gu, Busan 608-739, Republic of Korea

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Cavitation erosion tests were conducted to evaluate the cavitation erosion resistance of five coating materials: epoxy clear coat, commercial epoxy coating, glass-flake-reinforced epoxy coating, polyurethane coating, and silicone coating. The relationships between cavitation erosion resistance and the mechanical and thermal properties were studied. Eroded surfaces were observed using scanning electron microscopy and 3D confocal microscopy. We found that the cavitation erosion resistance was greater in coating materials with better ductile and tough properties than in coating materials with higher strength or hardness. Thermal stability was also a very important factor that determined cavitation erosion resistance.

Keywords:Cavitation;Erosion;Epoxy;Polyurethane;Silicone

[References]

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[1] Boorsma A, Whitworth S, Understanding the details of cavitation, in: Second International Symposium on Marine Propulsors, smp’11, June 2011, Hamburg, Germany, 2011.

[2] Machio CN, Akdogan G, Witcomb MJ, Luyckx S, Wear, 258, 434 (2005)

[3] Espitia LA, Toro A, Tribol. Int., 43, 2037 (2010)

[4] Santa JF, Baena JC, Toro A, Wear, 263, 258 (2007)

[5] Sugiyama K, Nakahama S, Hattori S, Nakano K, Wear, 258, 768 (2005)

[6] Hammitt FG, Timm EE, Hwang JB, Huang YC, ASTM Spec. Tech. Publ., 567, 197 (1974)

[7] Barletta A, Ball A, Cavitation erosion of polymeric materials, in: Proceedings of the Sixth International Conference on Erosion by Liquid and Solid Impact, 1983, pp. 1.1-1.8.

[8] Yamaguchi A, Wang X, Kazama T, SAE Int., http://dx.doi.org/10.4271/2002-01-1386. (2002)

[9] Hojo H, Tsuda K, Lubrication, 30, 233 (1984)

[10] Hattori S, Itoh T, Wear, 271, 1103 (2011)