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http://dx.doi.org/10.7837/kosomes.2012.18.5.481

Effects of Water Cavitation Peening on Cavitation Characteristics of 5000 Series Al Alloys  

Kim, Seong-Jong (Division of Marine Engineering, Mokpo National Maritime University)
Hyun, Koang-Yong (Department of Materials, Physics and Energy Engineering, Graduate School of Engineering, Nagoya University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.18, no.5, 2012 , pp. 481-487 More about this Journal
Abstract
Recently, the construction of the small Al alloy ships is an increasing trend in viewpoint such as the disposal issue of a retired ship, the enhancement of environmental regulation and resources recycling etc. for FRP ships. However, Al alloy ship which can achieve high speed by light weight in marine environment is exposed to a problem on materials damage by cavitation-erosion which is generated by large impact pressure with the collapse of air bubbles due to cavitation. Consequently, in this study, water cavitation peening technology was applied in Al alloy for ship to enhance durability life by preventing cavitation damage. So, the water cavitaton peening application time that presented the excellent cavitation characteristic investigated. The weight-loss of 5456-H116, 5083-H321 and 5052-O Al alloy at the optimum water cavitation peening time were improved to 42.11 %, 50.0 % and 25.7 %, respectively.
Keywords
Al ship; Water cavitation peening; Cavitation; Weightloss; 5000 series Al alloy;
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Times Cited By KSCI : 1  (Citation Analysis)
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