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Report No.

Synergistic effects of metal cations and sodium gluconate on the inhibition of freshwater corrosion of mild steel

Otani, Kyohei   ; Sakairi, Masatoshi*

The synergistic effects of metal cations in a solution on the ability of sodium gluconate to inhibit the corrosion of mild steel were investigated quantitatively focus on the parameter Y, which represents the "corrosion inhibitory effect of cations" by immersion and electrochemical tests. The results of the investigations showed that the inhibition ability of gluconates improved with increasing Y value of the metal cations in model freshwater. The electrochemical and surface analyses indicated that gluconate ligands and large-Y metal cations formed a protective film with few defects on the mild steel.



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Category:Materials Science, Multidisciplinary



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