Abstract

Attempt has been made to clarify an effect of iron element on cathodic behavior of aluminum in a substitute sea water. It is quantitatively shown that iron in aluminum shifts the cathodic polarization curve, which is the water reduction reaction, to noble direction. The values of exchange current density of water reduction reaction on FeAl3 intermetallic compound and 99.999%Al for the Tafel equation are experimentally estimated to 10−3.5 A·cm−2 and 10−7.0 A·cm−2, respectivery.

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