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http://dx.doi.org/10.14773/cst.2013.12.5.233

Effects of shot peening stand-off distance on electrochemical properties for surface modification of ALBC3 alloy  

Han, Min-Su (Division of Marine System Engineering, Mokpo Maritime University)
Hyun, Koang-Yong (Department of Materials, Physics and Energy Engineering, Graduate School of Engineering Japan, Nagoya University)
Kim, Seong-Jong (Division of Marine System Engineering, Mokpo Maritime University)
Publication Information
Corrosion Science and Technology / v.12, no.5, 2013 , pp. 233-238 More about this Journal
Abstract
In the case of casting materials or ductile materials for marine equipment, it is common to employ a surface modification for achieving cost reduction and improvement in strength. In particular, aluminium bronze ALBC3 exhibits excellent corrosion resistance, and thus widely used for marine application. However, application of the material under high-velocity seawater flow may induce electrochemical corrosion damage and physical damage such as cavitation erosion, leading to shorter service life of equipment. In this study, surface modification was carried out on ALBC3 alloy for different shot peening stand-off distances, and the physical hardness and electrochemical characteristics before and after modification were investigated. The results in each case showed the hardness increase in comparison with non-peened specimen, and the maximum hardness improvement(50 %) was found in 10 cm of shot-peening stand-off distance. It is observed that the electrochemical characteristics were irrelevant to application of shot peening.
Keywords
cast materials; surface modification; electrochemical experiment; shot peening; stand-off distance;
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1 K. D. Park and C. G. Jung, J. Ocean Eng. and Tech., 15, 93 (2001).
2 W. F. Brown and J. E. Strawley, ASTM STP 410, Philadelphia (1966).
3 H. Aoki, E. Nagashima and T. Miura, Proceedings of the 4th International Conference on Shot Peening, p. 513 (1990).
4 S. J. Kim and K. Y. Hyun, Corros. Sci. Tech., 11, 151 (2012).   DOI
5 K. D. Park, J. P. An and H. J. Ryu, Proceedings of the KSMPE Conference, p. 378 (2005).
6 K. D. Park, H. J. Ru and J. P. An, Trans. Korean Soc. Mech. Eng. A, 29, 930 (2005).   DOI   ScienceOn
7 H. Wohlfahrt, Proceedings of the 2nd International Conference on Shot Peening, 1, 316 (1984).
8 K. J. Kim, H. G. Lim, and Y. J. Kim, Corros. Sci. Tech., 23, 194 (1994).
9 S. K. Min, K. T. Kim, and W. S. Hwang, Corros. Sci. Tech., 10, 125 (2011).
10 H. S. Lee, D. S. Kim, J. S. Jung, Y. S. Pyoun and K. Shin, Corros. Sci., 51, 2826 (2009).   DOI   ScienceOn
11 S. M. Hong, M. K. Lee, G. H. Kim, K. H. Kim, W. W. Kim and S. I. Hong, J. Kor. Inst. Surf. Eng., 37, 234 (2004).