Exploring the Possibilities of Evaluating the Protective Efficiency of Volatile Inhibitors by Electrochemical Polarization in the Example of Copper and IFHAN-114

Вигдорович, В. И.; Цыганкова, Л. Е.; Knyazeva, L. G.; Shel, N. V.; Дорохов, А. В.; Zarapina, I.V.

doi:10.17277/vestnik.2018.03.pp.482-491

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“…% graphite dust does not practically change a character of the polarization curves (Fig.4). Fig.6b without R a has been used in a number of works (13)(14)(15)(16)(17) at the study of a behavior of the metal electrode with organic coatings. Here R s is the solution resistance (outside the surface film), C f and R f are the capacity of the film and the solution resistance in the film pores respectively, C dl is the capacity of electrical double layer on the interface metal/electrolyte solution in the pores, R c is the resistance of charge transfer in cathodic reaction, Z D is diffusion impedance.…”

Section: Resultsmentioning

confidence: 99%

Estimation of Protective Efficiency of Oil-based Compositions Containing Zinc and Graphite Powders Against Steel Atmospheric Corrosion

Цыганкова¹,

Вигдорович²,

Kichigin³

et al. 2008

ECS Trans.

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Zinc-containing oil-based compositions containing 75 wt. % zinc powder protect carbon steel in the natural conditions of urban atmosphere for a year with the protective efficiency equal to 96 %. More expedient binding is waste motor oil. The insertion of 4 wt. % graphite dust allows to decrease a content of Zn powder in the composition to 60 wt. % without essential alteration of the protective efficiency. The corrosion potential of the steel electrode covered with the oil composition containing 75 wt. % Zn powder or 60 wt. % Zn powder and 4 wt. % graphite dust in the 3 % NaCl solution is near Zn electrode potential. The polarization curves are close to ones of metal zinc. The properties of the above oil compositions were studied by the electrochemical impedance spectroscopy method too. The values of the equivalent scheme parameters satisfactorily correlate with data of the gravimetrical corrosion tests and the results of the polarization measurements and allow to explain the peculiarities of the zinc-containing oil compositions and an influence of their modification with the graphite powder.

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Section: Resultsmentioning

confidence: 99%

Estimation of Protective Efficiency of Oil-based Compositions Containing Zinc and Graphite Powders Against Steel Atmospheric Corrosion

Цыганкова¹,

Вигдорович²,

Kichigin³

et al. 2008

ECS Trans.

View full text Add to dashboard Cite

show abstract

Exploring the Possibilities of Evaluating the Protective Efficiency of Volatile Inhibitors by Electrochemical Polarization in the Example of Copper and IFHAN-114

Abstract: In order to simulate the conditions for assessing the protective efficacy

Cited by 1 publication

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Estimation of Protective Efficiency of Oil-based Compositions Containing Zinc and Graphite Powders Against Steel Atmospheric Corrosion

Estimation of Protective Efficiency of Oil-based Compositions Containing Zinc and Graphite Powders Against Steel Atmospheric Corrosion

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