Molybdate Corrosion Inhibition in Deaerated and Low-Oxygen Waters

Weber, T.; Stranick, Michael; Vukasovich, M. S.

doi:10.5006/1.3583065

Cited by 16 publications

(8 citation statements)

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“…Experimental data for this system show substantial scattering. 39 However, the predicted trends are in agreement with the data.…”

Section: Corrosion-march 2001supporting

confidence: 76%

“…The presence of inhibitors influences the passive current density as shown by Equation (39). A substantial decrease in the passive current density may give rise to passive behavior and a substantial reduction in corrosion rates.…”

Section: Applications Of the Modelmentioning

confidence: 99%

“…A substantial decrease in the passive current density may give rise to passive behavior and a substantial reduction in corrosion rates. Equation (39) predicts that the passive current density is a strong function of the inhibitor concentration. To verify the performance of…”

Section: Applications Of the Modelmentioning

confidence: 99%

“…As shown in Figure 3, the corrosion rate is strongly affected by pH. This was caused by the effect of pH on the passive current density (Equation [39]) and the contribution of the proton reduction reaction (Equation [9]), which becomes significant at lower pH values. As shown in Figure 3, the effect of pH and nitrite concentration is accurately reproduced by the model.…”

Section: Corrosion-march 2001mentioning

confidence: 99%

“…This was caused by the fact that nitrate ions have oxidizing properties (Equation [22]) and contribute to increasing the corrosion potential. However, molybdate ions are not oxidizing and their effect is limited to reducing the passive current density (Equation [39]). However, the reduction of the passive current density was not sufficient, in this case, to achieve passive behavior.…”

Section: Corrosion-march 2001mentioning

confidence: 99%

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Computation of Rates of General Corrosion Using Electrochemical and Thermodynamic Models

Anderko¹,

McKenzie²,

Young³

2001

CORROSION

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A comprehensive model has been developed for simulating the rates of general corrosion of selected metals in aqueous solutions. The model consists of a thermophysical and an electrochemical module. The thermophysical module is used to calculate the speciation of aqueous solutions and to obtain concentrations, activities, and transport properties of individual species. The electrochemical module simulates partial oxidation and reduction processes on the surface of the metal. It is capable of reproducing the active-passive transition and the effect of solution species on passivity. The model has been implemented in a program that can be used to simulate the effects of conditions such as temperature, pressure, pH, component concentrations, and flow velocity on corrosion rates. Application examples are presented for carbon steel in aerated systems in the presence of selected inorganic inhibitors. Good agreement with experimental data was obtained.

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“…Experimental data for this system show substantial scattering. 39 However, the predicted trends are in agreement with the data.…”

Section: Corrosion-march 2001supporting

confidence: 76%

Section: Applications Of the Modelmentioning

confidence: 99%

Section: Applications Of the Modelmentioning

confidence: 99%

Section: Corrosion-march 2001mentioning

confidence: 99%

Section: Corrosion-march 2001mentioning

confidence: 99%