SURFACE LAYER NANO-MECHANICAL RESPONSESTO INTERACTION BETWEEN CAVITATIONAND ELECTROCHEMICAL CORROSION

°AE± ¢ Û Í Ý© ÑAEÍ ¡ 615 corrosion-induced erosion and erosion-induced corrosion, respectively, if anodic polarized potentials were controlled at the beginning of passive to super-passive and super-passive regions.The surface layer nano-hardness is a key factor dominating cavitation corrosion resistances of metals.During the interaction of cavitation with electrochemical corrosion, mass loss of corrosion-induced erosion, which is called non-Faraday weight loss, increases as a result of electrochemical corrosion.The corresponding corroded morphologies with microgrooves, micro-holes and micro-pits were observed.