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http://dx.doi.org/10.5916/jkosme.2014.38.7.883

Characteristics of surface damage with applied current density and cavitation time variables for 431 stainless steel in seawater  

Kim, Seong-Jong (Division of Marine Engineering, Mokpo Maritime University)
Chong, Sang-Ok (Division of marine engineering, Mokpo national maritime university)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.38, no.7, 2014 , pp. 883-889 More about this Journal
Abstract
It is generated for cavitation erosion due to the local static boiling by pressure differentials in high speed rotating fluid environment. The cavitation is influenced by various elements such as pressure, velocity, temperature, pH of fluid and medium. In particular, the damage of material is accelerated due to the electrochemical corrosion by $C1^-$ and cavitation erosion due to cavities in seawater. In this paper, hence, it investigated for martensite stainless steel the damage behavior with applied current density and cavitation time in natural seawater solution. Less damage depth at the cavitation condition was observed than static condition as a result of galvanostatic experiment. Furthermore, it was shown that dramatic increase of weightloss, damage rate and damage depth after 3 hour of cavitation test.
Keywords
Cavitation; Current density; Stainless steel; Weightloss;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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