海水中における電気防食の難易に対する鋼組成の影響
1973 年 22 巻 8 号 p. 323-326
詳細
1973 年 22 巻 8 号 p. 323-326
Low-alloy steels show more noble corrosion potentials than carbon steel in sea water and require more current to be cathodically polarized to a given potential. When coupled to an insufficient galvanic anode, a low-alloy steel is polarized less but gives a better protection efficiency. A low-alloy steel has an advantage over carbon steel at a position far from anode or where fluctuation of the environment tends to produce incomplete cathodic protection conditions. The phenomenon is explained by electrochemical considerations.
