Abstract

It is shown by means of electrochemical measurements that small amounts of silane are capable of improving the protective properties of sodium salts of different organic carboxylates in the passivation of lowcarbon steel. The adsorption of sodium oleoylsarcosinate on both oxidized and reduced steel surfaces is studied by means of ellipsometry. It is shown that the passivation of low-carbon steel with a mixture of silane and oleoylsarcosinate at a ratio of 3 : 1 is an efficient method of protection under severely humid atmospheric conditions.

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