Improvement of the linear polarization resistance method for testing steel corrosion inhibitors

Фаритов, А. Т.; Rozhdestvenskii, Yu. G.; Yamshchikova, S. A.; Minnikhanova, E. R.; Tyusenkov, A. S.

doi:10.1134/s0036029516110070

Cited by 35 publications

(9 citation statements)

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“…i corr is the CCD, μA·cm −2 . B is Stern–Geary constant ranged from 13 to 52 mV 36–38 ; B value of 26 mV is suitable for the corroded rebar, whereas B value of 52 mV is used for uncorroded rebar, 39 and the criteria for evaluating the corrosion degree of rebar was given in Reference 31.…”

Section: Methodsmentioning

confidence: 99%

Time‐dependent model and life prediction for reinforcement corrosion in magnesium oxychloride cement concrete

Gong

Wang

Zhang

et al. 2020

Structural Concrete

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An effective approach to make better use of the salt-brine resistance of magnesium oxychloride cement concrete (MOCC) and reduce "magnesium damage" (the concentrate of magnesium resources) that destroys the ecological balance in salt lake areas is to apply MOCC widely. However, the first problem is the high chloride ion content in MOCC, which corrodes reinforcement easily. Concrete cover depth, the experimental environment, and surface treatment of rebar were considered factors study in reinforcement corrosion in MOCC. Based on the tests conducted, a time-dependent model for reinforcement corrosion in MOCC was proposed, and its life time (initial corrosion and initial cracking time) was calculated and verified in tests. The results showed that proper coating could inhibit reinforcement corrosion and increase the service life of rebar significantly. Further, the salt lake environment had little influence on reinforcement corrosion in MOCC. For exposed rebar in MOCC, the larger the concrete cover depth, the more serious the reinforcement corrosion, while, for coated rebar, the converse was true. All cases of reinforcement corrosion in MOCC conformed to the logarithmic-type time-dependent model before concrete cracking. Accordingly, reinforcement corrosion in MOCC and the excess of magnesium resources are expected to be solved.

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Section: Methodsmentioning

confidence: 99%

Time‐dependent model and life prediction for reinforcement corrosion in magnesium oxychloride cement concrete

Gong

Wang

Zhang

et al. 2020

Structural Concrete

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“…On the other hand, LPR is frequently applied for testing corrosion inhibitors, such as Faritov et al [134]. However, there are some important considerations when adopting LPR in engineering applications: (1) To obtain the amount of corrosion, it needs the frequent LPR measurements.…”

Section: Electrochemical Methodsmentioning

confidence: 99%

A Recent Progress of Steel Bar Corrosion Diagnostic Techniques in RC Structures

Luo

Jun-nan

et al. 2018

Sensors

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Corrosion of steel bar is one of key factors undermining reinforced concrete (RC) structures in a harsh environment. This paper attempts to review the non-destructive procedures from the aspect of the corrosion measurement techniques, especially their advantages and limitations. Systematical classification of diagnostic methods is carried out to determine any probable corrosion issues before the structures become severe, and helps choose the suitable method according to different construction features. Furthermore, the three electrochemical factors method is introduced to inspire researchers to combine various techniques to improve corrosion evaluation accuracy. The recommendations for future work are summarized, in conclusion.

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“…The spontaneous chemical interaction of the inhibitive properties of the Artemether Lumefantrine drug on mild steel was examined using the potentiodynamic polarization technique. The design procedure in Table 1 was follow and all materials were subjected to (salty) environments at an ambient temperature of Corrosion rate is the amount of the metal lost due to deterioration per unit time at a specified surface [8]. Faraday's law is often used to obtain the corrosion rate of any species of material in weight lost per ampere of current flow per unit time.…”

Section: Electrochemical Testsmentioning

confidence: 99%

“…In the marine sector, mild steel is considered to be the best metal for use in construction due to its low cost, mechanical strength and simple process of fabrication [7]. The main disadvantage is that it tends to corrode rapidly in marine media and would lose strength quickly when it is not sufficiently protected which usually leads to failure and collapse of its structures [8].…”

Section: Introductionmentioning

confidence: 99%

Study of Corrosion Properties, Adsorption Mechanism and Thermodynamics Characteristics of Expired Artemether-Lumefantrine Inhibition Drug on Mild Steel in NaCl Solution

Odunlami¹,

Tijani²,

Fayomi³

2020

International Journal of Engineering Research and Technology

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In this study, electrochemical and structural pitting effect of Artemether/Lumefantrine inhibitive drug was examined as a corrosion inhibitor for mild steel in 0.625M sodium chloride (NaCl) medium using both weight loss and potentiodynamic polarisation method. The effect expired drug was assessed with thermodynamic parameters from temperature variation and adsorption mechanism. Surface morphological assessment was also carried out using scanning electron microscope (SEM) and energy dispersive x-ray spectroscopy (EDS) analyses. The results obtained shows that artemether/lumefantrine inhibits the corrosion of mild steel in 0.625M salt solution fairly well with an inhibition efficiency of up to 75% at 298 K at 20ml of the inhibitor. The inhibition efficiency reduced with increase in temperature but increased with increase in inhibitor concentration which suggests that the inhibition efficiency is inversely proportional to temperature but directly proportional to concentration. It operates with the mixed inhibition method since both the cathodic and anodic reactions were affected by the addition of the inhibitor. Langmuir adsorption isotherm best matches the behaviour of the inhibitor in the study with a minimum correlation coefficient of 0.975.

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Improvement of the linear polarization resistance method for testing steel corrosion inhibitors

Cited by 35 publications

References 0 publications

Time‐dependent model and life prediction for reinforcement corrosion in magnesium oxychloride cement concrete

Time‐dependent model and life prediction for reinforcement corrosion in magnesium oxychloride cement concrete

A Recent Progress of Steel Bar Corrosion Diagnostic Techniques in RC Structures

Study of Corrosion Properties, Adsorption Mechanism and Thermodynamics Characteristics of Expired Artemether-Lumefantrine Inhibition Drug on Mild Steel in NaCl Solution

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