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The Effect Of Surface Topography On Cavitation Erosion Of Mild Steel

Wang Bao Cheng, Zhu Jin Hua, Yan Yong-Li

The variations of the altitude density function (ADF) about surface profile of mild steel were investigated during the process of electrochemical polishing (ECP), and its cavitation erosion behavior and corrosion behavior in 0.5 mole/L NaCl aqueous solution were studied by magnetostrictive vibratory device for cavitation erosion and electrochemical device, respectively. The results showed that variation tendencies of ADF with polishing time was flat-steep-flat, and there was narrow Gauss distribution in ADF at the special period of ECP time form 4 seconds to 8 seconds, which had a fine performance of cavitation erosion resistance and electrochemical corrosion resistance. ï›™ 2006 Trade Science Inc. - INDIA