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Corresponding Author

Xing_peng GUO

Abstract

The de_adsorption behavior of four inhibitors on N80 steel with and without carbonate film was investigated by polarization and electrochemical impedance spectroscopy (EIS) techniques. It was found that,for different inhibitors,de_adsorption behavior and adsorbability between with and without carbonate film are different.Furthermore,acidic inhibitor and small size molecule inhibitor shows different inhibition behavior.

Keywords

Inhibitor, CO 2 corrosion, Polarization curve, Electrochemical impedance spectroscopy, De_adsorption, Carbonat film

Publication Date

2003-08-28

Online Available Date

2003-08-28

Revised Date

2003-08-28

Received Date

2003-08-28

References

[1] MaliH .InfluenceofC16 quaternaryamineonsurfacefilmandpolarizationresistanceofmildsteelincarbondioxide_saturated5%sodiumchlorid[J].Corrosion,1995,51(4):321.

[2] RamachandranS .Interactionsandpropertiesofcorrosioninhibitorswithby_productlayers[J].Corrosion,2001,57(6):508.

[3] ZhaoGuoxian,ChenChangfeng.CO2 corrosionbehaviorofX52steel[J].CorrosionScienceandProtectionTechnology,2001,13(4):36.

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