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Pitting Corrosion Behavior of N80 Steel

Xingpeng Guo

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Abstract

The pitting corrosion behavior of N80 steel in aqueous NaCl solution containing 0.5 mol/L NaHCO3 was investigated making use of electrochemical noise(ECN) measurement and atomic force microscopic(AFM) observation.It was found that the number of the pitting peaks,the peak value and the life of the peak increased with the increasing concentration of Cl-.Moreover,there existed obvious correlation between the characteristics of the measured electrochemical noise spectroscopy and the change on the surface state of the N80 steel.

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What this paper is about

The pitting corrosion behavior of N80 steel in aqueous NaCl solution containing 0.5 mol/L NaHCO3 was investigated making use of electrochemical noise(ECN) measurement and atomic force microscopic(AFM) observation.It was found that the number of the pitting peaks,the peak value and the life of the peak increased with the increasing concentration of Cl-.Moreover,there existed obvious correlation between the characteristics of the measured electrochemical noise spectroscopy and the change on the surface state of the N80 steel.

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Available abstract

The pitting corrosion behavior of N80 steel in aqueous NaCl solution containing 0.5 mol/L NaHCO3 was investigated making use of electrochemical noise(ECN) measurement and atomic force microscopic(AFM) observation.It was found that the number of the pitting peaks,the peak value and the life of the peak increased with the increasing concentration of Cl-.Moreover,there existed obvious correlation between the characteristics of the measured electrochemical noise spectroscopy and the change on the surface state of the N80 steel.

Key concepts: Electrochemical noise, Materials science, Pitting corrosion, Electrochemistry, Corrosion, Aqueous solution, Atomic force microscopy, Metallurgy

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