抄録
Measuring the relation between the cathodic current density and the amount of cavitation-erosion, it was confirmed that the cathodic protection method was very effective to prevent the cavitation-erosion. The experiment was carried out with the magnetostriction vibration apparatus. Cavitation was occured at the lower surface of mild steel test piece, attached to the lower end of nickel rod, in N/20 K2SO4 solution.
