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Investigation on surface hardening and corrosion characteristic by water cavitation peening with time for Al 5052-O alloy
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  • Journal title : Corrosion Science and Technology
  • Volume 11, Issue 4,  2012, pp.151-156
  • Publisher : The Corrosion Science Society of Korea
  • DOI : 10.14773/cst.2012.11.4.151
 Title & Authors
Investigation on surface hardening and corrosion characteristic by water cavitation peening with time for Al 5052-O alloy
Kim, Seong-Jong; Hyun, Koang-Yong;
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 Abstract
The cavity formed by the ultrasonic generation in the fluid with the application of water cavitation peening collides into the metal surface. At this time, the surface modification effect such as the work hardening presents by the compressive residual stress formed due to the localized plastic deformation. In this investigation, the water cavitation peening technology in the distilled water with the lapse of time was applied to 5052-O aluminum alloy for aluminum ship of a high value. So, the optimum water cavitation peening time on the effect for surface hardening and anti-corrosion property was investigated. Consequently, the water cavitatin peening time on excellent hardness and corrosion resistance characteristic presented 3.5 min. and 5.0 min, respectively. The surface hardness in the optimum water cavitation peening time was improved approximately 45% compared to the non-WCPed condition. In addition, corrosion current density was decreased.
 Keywords
aluminium alloy;water cavitation peening;surface hardening;corrosion resistance;micro-droplet cell;
 Language
Korean
 Cited by
1.
431 스테인리스강의 해수 내 적용 전류밀도 및 캐비테이션 시간 변수에 따른 표면손상 특성,김성종;정상옥;

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