Mechanism of iron corrosion in water–polyethylene glycol (PEG 400) mixtures

Guilminot, Élodie; Dalard, F.; Degrigny, Christian

doi:10.1016/s0010-938x(02)00010-0

Cited by 49 publications

(26 citation statements)

References 15 publications

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“…With increasing in the ethylene glycol concentration to 10 V/V%, corrosion current of the steel alloy increases. The increase in corrosion current in this concentration is due to autoprotolysis of ethylene glycol caused by interactions between ethylene glycol and the water which leads to increasing production of ionic species [13]. With higher concentration of ethylene glycol, corrosion current of the steel alloy substrate decreases.…”

Section: Effect Of Ethylene Glycol Concentrationmentioning

confidence: 99%

Electrochemical Corrosion Behavior of Duplex Stainless SteelAISI 2205 in Ethylene Glycol-Water Mixture in the Presence of50 W/V % LiBr

Goodarzi¹,

Danaee²,

Ebrahimi³

et al. 2016

Journal of Electrochemical Science and Technology

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The corrosion behavior of duplex stainless steel AISI 2205 was investigated in ethylene glycol-water mixture in the presence of 50 W/V % LiBr at different concentrations and different temperatures. Cyclic polarization, impedance measurements and Mott-Schottky analysis were used to study the corrosion behavior the semi conductive properties of the passive films. The results showed that with increasing in the ethylene glycol concentration to 10 V/V%, the corrosion rate of the steel alloy substrate increased. In higher concentrations of ethylene glycol, corrosion current of steel decreased. The results of scanning electron microscopy of electrode surface confirmed the electrochemical tests. Electrochemical experiment showed that duplex steel was stable for pitting corrosion in this environment. The increase in the ethylene glycol concentration led to increasing the susceptibility to pitting corrosion. The corrosion current increased as the temperature rise and also pitting potentials and repassivation potentials shifted towards the less positive values as the temperature increased. According to Mott-Schottky analysis, passive films of stainless steel at the different temperatures showed both n-type and p-type semiconductor behavior in different potential.

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Section: Effect Of Ethylene Glycol Concentrationmentioning

confidence: 99%

Electrochemical Corrosion Behavior of Duplex Stainless SteelAISI 2205 in Ethylene Glycol-Water Mixture in the Presence of50 W/V % LiBr

Goodarzi¹,

Danaee²,

Ebrahimi³

et al. 2016

Journal of Electrochemical Science and Technology

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“…The formation of the iron ions, in turn, leads to the formation of corrosion elements, as shown in Fig. 2 (Evans and Hoar, 1932;Guilminot et al, 2002). The corrosion is proportional to the amount of oxygen dissolved in the PVA matrix.…”

Section: Modeling the Temperature Compensationmentioning

confidence: 99%

Compensation for the influence of temperature and humidity on oxygen diffusion in a reactive polymer matrix

Marek

Velasco-Vélez

Doll

et al. 2014

J. Sens. Sens. Syst.

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Abstract. In a previous work (Marek et al., 2013) a time-monitoring oxygen sensor was proposed. This sensor is based on a diffusion-controlled oxygen reaction of the indicator system methylene blue (MB)/leuco methylene blue (LMB) and riboflavin embedded in a water-loaded poly(vinyl alcohol) (PVA) matrix. It can be used in packaging, sensors, and biotechnology applications. Since the oxygen diffusion coefficient in the PVA matrix strongly depends on temperature and humidity, two different approaches were developed within this work to compensate for these two effects. To compensate for faster oxygen diffusion at higher temperatures, iron particles were added to the PVA matrix, resulting in a novel PVA/iron composite matrix. Adding silicone particles allows compensating the influence of humidity. Both temperature and humidity compensation were modeled using the finite-element method in good accordance with the experimental data. This allows tuning the sensor for application at different conditions of temperature and humidity and therewith in different environments.

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“…Guilminot et al [17] have studied the electrical conductivity of a PEG400-water system. They conclude that the system has the greatest electrical conductivity at a concentration of 20%.…”

Section: Experimental Phenomenonmentioning

confidence: 99%

A study of supermolecular polarization of comb-like polycarboxylate admixtures synthesized with polyoxyethylene macromolecules

Duan¹,

Huang²,

Li³

et al. 2012

Journal of Molecular Liquids

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Mechanism of iron corrosion in water–polyethylene glycol (PEG 400) mixtures

Cited by 49 publications

References 15 publications

Electrochemical Corrosion Behavior of Duplex Stainless SteelAISI 2205 in Ethylene Glycol-Water Mixture in the Presence of50 W/V % LiBr

Electrochemical Corrosion Behavior of Duplex Stainless SteelAISI 2205 in Ethylene Glycol-Water Mixture in the Presence of50 W/V % LiBr

Compensation for the influence of temperature and humidity on oxygen diffusion in a reactive polymer matrix

A study of supermolecular polarization of comb-like polycarboxylate admixtures synthesized with polyoxyethylene macromolecules

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