The influence of surface roughness on the impedance data for iron electrodes in acid solutions

Rammelt, U.; Reinhard, G.

doi:10.1016/0010-938x(87)90079-5

Cited by 203 publications

(62 citation statements)

References 31 publications

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“…35,36) The surface roughness of the 0.5 mass% Cr steel was higher than that of the blank steel with increasing time because an increasing depression angle Fig. 7 Comparison of average corrosion rate of steels after 7-day immersion.…”

Section: ¹1mentioning

confidence: 99%

Alloying Effect of Chromium on the Corrosion Behavior of Low-Alloy Steels

Park

Kim

2013

Mater. Trans.

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Alloying effect of Cr in the interaction with other elements in low alloy steel for corrosion resistance was designed and prepared. The corrosion behavior of the alloy immersed in mild acidchloride solution (200 atomic ppm Cl ¹ and pH 4) at room temperature in an ambient condition has been studied by electrochemical laboratory tests (potentiodynamic polarization test, potentiostatic test, electrochemical impedance spectroscopy) and surface analyses (SEM, XPS). The results reveal that Cr addition improved the localized corrosion resistance by promoting the formation of beneficial Fe and Cu compounds on the protective films of 0.1 and 0.3 mass% Cr steels. However, the over-alloying circumstance in 0.5 mass% Cr steel caused the negative effect of Cr addition due to metal chloride-induced hydrolysis which accelerated the propagation of the localized corrosion. To summarize, 0.3 mass% Cr addition was determined to be the optimum value for alloying to blank steel.

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Section: ¹1mentioning

confidence: 99%

Alloying Effect of Chromium on the Corrosion Behavior of Low-Alloy Steels

Park

Kim

2013

Mater. Trans.

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“…The dispersion of the capacitance semicircle is usually connected with surface inhomogeneity, active centers distribution, inhibitor adsorption, formation of porous layers, etc. [21][22][23][24][25]. That is why it is used as a measure of the surface inhomogeneity.…”

Section: Resultsmentioning

confidence: 99%

Study of the temperature effect on electrochemical impedance spectra in presence of an inhibitor

Popova¹,

Christov²,

Vasil'ev³

et al. 2015

Int. J. Corros. Scale Inhib.

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The inhibitive properties of a quaternary ammonium salt displayed in case of mild steel corrosion in 1 M HCl are studied in the temperature range of 30-60°C. Electrochemical impedance spectroscopy and polarization resistance method are applied. A structural model describing the processes at the interface is advanced and its parameters are estimated. The data on the temperature effect in inhibitor's presence and absence are juxtaposed. An interpretation of the results obtained is suggested.

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“…Figure 4 shows the Nyquist plots that were obtained for (a) steel and (b) copper in the simulated tap water with different BTAH concentrations. The roughness and nonhomogeneity of the specimen surface can affect the variance of the pure capacitive loops [20][21][22] . Figure 4 shows that the increase of the BTAH concentration increases the radius of the capacitive loops as well as the inhibition ef ciencies in all cases.…”

Section: Potentiodynamic Polarization Measurementsmentioning

confidence: 99%

“…Some parameters extracted from the EIS data are listed in Table 4. The inhibition ef ciency and double layer capacitance are calculated using the following equations 22,34) :…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

Electrochemical and Quantum Chemical Studies of 1, 2, 3-Benzotriazole as Inhibitor for Copper and Steel in Simulated Tap Water

Kim

2017

Mater. Trans.

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The corrosion inhibition effect of benzotriazole on copper and steel in simulated tap water was investigated by using potentiodynamic polarization, electrochemical impedance spectroscopy and a quantum chemistry analysis. The corrosion inhibition ef ciency for copper and steel was accordingly increased with an increasing of the benzotriazole concentrations. However, the electrochemical test showed a signi cant difference between the inhibition ef ciency of copper and steel. From molecular theory and the adsorption isotherm, the difference between the d-orbital structure of copper and steel affects the adsorption stability of benzotriazole on the metal surface. This postulation is well correlated with the results of the quantum chemical analysis.

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The influence of surface roughness on the impedance data for iron electrodes in acid solutions

Cited by 203 publications

References 31 publications

Alloying Effect of Chromium on the Corrosion Behavior of Low-Alloy Steels

Alloying Effect of Chromium on the Corrosion Behavior of Low-Alloy Steels

Study of the temperature effect on electrochemical impedance spectra in presence of an inhibitor

Electrochemical and Quantum Chemical Studies of 1, 2, 3-Benzotriazole as Inhibitor for Copper and Steel in Simulated Tap Water

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