Corrosion Resistance of 65Mn, 35Cr2Ni3MoV and AF1410 in Simulated Marine Environment

The corrosion resistance of 65Mn, 35Cr2Ni3MoV and AF1410 in simulated marine environment was systemically characterized through full immersion experiment in artificial sea water, salt fog/wet/dry alternate circulation experiment and electrochemical test. The results showed that the corrosion rate of the three materials followed the order of 65Mn>35Cr2Ni3MoV> AF1410. The electrochemical impedance spectroscopy (EIS) simulation results showed that the amount of the oxidation film on the bare metal material surface followed the order of 35Cr2Ni3MoV> 65Mn > AF1410, the density of the oxidation film followed the order of AF1410 >>35Cr2Ni3MoV> 65Mn, and the smoothness of the oxidation film followed the order of 35Cr2Ni3MoV> 65Mn > AF1410.