An Improved Method for Analysis of Polarization Resistance Data

Gerchakov, Sol M.; Udey, Lanny R.; Mansfeld, F.

doi:10.5006/1.3577560

Cited by 27 publications

(18 citation statements)

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“…The selection of an appropriate model can be time consuming, particularly, if a detailed study is desired. A number of programming methods for computing circuit parameters are available in the literature [20][21][22][23]. In this study, we have used our own algorithm implemented on Mathematica 7.0 (commonly and extensively utilized for analyzing mathematical and numerical problems) for analyzing the results and computing the electrical circuit.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Passive Film Properties and Pitting Resistance of AISI 316 in Aqueous Ethanoic Acid Containing Chloride Ions using Electrochemical Impedance Spectroscopy(EIS)

Mahato

Singh

2011

Port. Electrochim. Acta

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The structure and properties of the passive film formed on the surface of AISI 316 stainless steel in aqueous ethanoic acid have been investigated using EIS. Experiments were carried out at 30 ºC in different concentrations of ethanoic acid. Effects on the film properties due to the change of electrode potential, exposure durations and addition of chloride ions to the electrolyte were also studied. Impedance parameters were determined using simple model and equivalent electrical circuit. Results suggest the formation of multilayered passive film on the steel surface. The film possessed dual structure. Inner layers were thin and compact, whereas the outer layer was porous and defective. The measured capacitive behavior was of non ideal nature and hence replaced by constant phase element or CPE. Formation of the passive film and the change in its structure has been explained using impedance parameters.

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Section: Introductionmentioning

confidence: 99%

Investigation of Passive Film Properties and Pitting Resistance of AISI 316 in Aqueous Ethanoic Acid Containing Chloride Ions using Electrochemical Impedance Spectroscopy(EIS)

Mahato

Singh

2011

Port. Electrochim. Acta

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“…The potentials for both sample types became less negative, (9) and the currents tended to decrease as the pH values increased.…”

Section: Resultsmentioning

confidence: 94%

“…For both specimen types, a greater corrosion (8)[Below -550 mV (SCE) for high-chromium cast iron and below -625 mV (SCE) for high-carbon steel specimens at pH > 11.] (9)[Above -250 mV (SCE) for high-chromium cast iron and above -400 mV (SCE) for high-carbon steel specimens at pH > 11.] tendency was found for chalcopyrite slurries than for the other media in the pH range of 4 to 10, especially below pH 6.…”

Section: Figures 3 and 4 Show The Corrosion Currents Obtained Whenmentioning

confidence: 99%

Jet Slurry Corrosive Wear of High-Chromium Cast Iron and High-Carbon Steel Grinding Ball Alloys

Pitt¹,

Chang²

1986

CORROSION

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Samples of high-chromium cast iron and high-carbon steel grinding balts were subjected to jet slurry impingement in an electrochemically instrumented apparatus. The jet velocity was 6.6 m/s. Quartz and chalcopyrite slurries containing 15% solids were used at pH values ranging from 5 to 11. Pure wear rates were obtained by cathodic protection, while pure corrosion rates were obtained by the polarization resistance technique. A synergistic effect was found between corrosion and wear.

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“…al. 24 Scan rates were held at 1 mV/s and all potentials are reported relative to a silver/silver chloride reference electrode (Bioanalytical Systems,…”

Section: Methodsmentioning

confidence: 99%

The Effect of Dissolved CO₂and O₂on the Corrosion of Iron

McIntire¹,

Lippert²,

Yudelson³

1990

CORROSION

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Reports concerning the effects of dissolved carbon dioxide on the corrosion of iron have ranged from "no effect" to a catalytic mechanism for the observed corrosion processes. Pedagogical references indicate that dissolved carbon dioxide is benign towards iron corrosion. Contrary to this, our results suggest that carbon dioxide does indeed play an active role in the corrosion of iron much as chloride and other aggressive ions. Visual, spectral, and electrochemical results all support the significance of the effect of dissolved carbon dioxide on the corrosion of iron. ABSTRACTComputer algorithms that minimize the Gibbs free energy of complex systems are applied to a system undergoing corrosion. Such calculations are more correct than standard single equation calculations since they adjust species' activities to reflect correctly the competing equilibria. An example of the application of such a calculation is given, based on the secondary system of a nuclear power plant. The programs described are available for use on microcomputers.

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An Improved Method for Analysis of Polarization Resistance Data

Cited by 27 publications

References 0 publications

Investigation of Passive Film Properties and Pitting Resistance of AISI 316 in Aqueous Ethanoic Acid Containing Chloride Ions using Electrochemical Impedance Spectroscopy(EIS)

Investigation of Passive Film Properties and Pitting Resistance of AISI 316 in Aqueous Ethanoic Acid Containing Chloride Ions using Electrochemical Impedance Spectroscopy(EIS)

Jet Slurry Corrosive Wear of High-Chromium Cast Iron and High-Carbon Steel Grinding Ball Alloys

The Effect of Dissolved CO₂and O₂on the Corrosion of Iron

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An Improved Method for Analysis of Polarization Resistance Data

Cited by 27 publications

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Investigation of Passive Film Properties and Pitting Resistance of AISI 316 in Aqueous Ethanoic Acid Containing Chloride Ions using Electrochemical Impedance Spectroscopy(EIS)

Investigation of Passive Film Properties and Pitting Resistance of AISI 316 in Aqueous Ethanoic Acid Containing Chloride Ions using Electrochemical Impedance Spectroscopy(EIS)

Jet Slurry Corrosive Wear of High-Chromium Cast Iron and High-Carbon Steel Grinding Ball Alloys

The Effect of Dissolved CO2and O2on the Corrosion of Iron

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The Effect of Dissolved CO₂and O₂on the Corrosion of Iron