Application of transient analysis using Hilbert spectra of electrochemical noise to the identification of corrosion inhibition

Homborg, A.M.; Westing, E.P.M. van; Tinga, Tiedo; Ferrari, G.; Zhang, X.; Wit, J.H.W. de; Mol, J.M.C.

doi:10.1016/j.electacta.2013.11.084

Cited by 37 publications

(29 citation statements)

References 53 publications

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“…The data were processed using Matlab from Mathworks. 28,42,43 Odd random phase electrochemical impedance spectroscopy.-A typical three electrode set-up was used for the electrochemical experiments with an Ag/AgCl 3 M KCl reference electrode, a stainless steel grid as the counter electrode and the hot-dip galvanized steel sample as the working electrode. The set-up was placed in a Faraday cage.…”

Section: Methodsmentioning

confidence: 99%

“…26 Homborg et al successfully identified localized corrosion of stainless steel, corrosion inhibition on AA2024-T3 by Ce ions and microbiologically influenced corrosion of carbon steel using EN. [27][28][29] Odd random phase electrochemical impedance spectroscopy (ORP-EIS) is a multisine EIS technique providing information about the linearity and time-invariance of electrochemical systems. Here, the system is excited with a multisine signal over the entire frequency range instead of exciting the electrochemical system at each subsequent frequency.…”

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confidence: 99%

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A Complementary Electrochemical Approach for Time-Resolved Evaluation of Corrosion Inhibitor Performance

Meeusen¹,

Zardet²,

Homborg³

et al. 2019

J. Electrochem. Soc.

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In this paper, different macroscopic electrochemical techniques are applied to study the corrosion inhibitor efficiency, protection mechanism and stability of a calcium aluminum polyphosphate silicate hydrate inhibitor on hot-dip galvanized steel in the timedomain. Potentiodynamic polarization (PP) measurements are applied to study the anodic and cathodic mechanistic behavior as well as inhibitor efficiencies at discrete and single times of exposure. Open circuit potential (OCP) with superimposed linear polarization resistance (LPR) measurements are applied as a faster, non-invasive alternative to PP, characterizing the overall performance of the system in terms of the polarization resistance. Electrochemical impedance spectroscopy (EIS) measurements are applied to detail both the overall performance of the system as well as the corrosion inhibition mechanism related to the electrochemical system's physicochemical representation over time. Electrochemical noise (EN) measurement are used to evaluate the inhibition efficiency as a function of exposure time, represented by the electrochemical noise resistance. Odd random phase electrochemical impedance spectroscopy (ORP-EIS) is selected as the electrochemical tool to study the system's instability, by evaluation of the non-linearities and non-stationarities over time. The non-stationarities present in the inhibitor-containing electrochemical system are shown to cause the overall instability of the system and should be taken into account when interpreting results from the different techniques over time.

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Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

A Complementary Electrochemical Approach for Time-Resolved Evaluation of Corrosion Inhibitor Performance

Meeusen¹,

Zardet²,

Homborg³

et al. 2019

J. Electrochem. Soc.

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“…Different approaches are used for data interpretation, including statistical, Fourier transform (FT) and wavelet transform (WT) techniques [38]. Among these procedures, Homborg et al [39][40][41][42] proved that Hilbert spectra, calculated with the HilbertHuang transform, could be successfully applied to corrosion studies under open-circuit conditions. They showed that Hilbert spectra allow a detailed determination of the instantaneous frequency composition of individual corrosion phenomena observed in the ECN and EPN signals at any given moment in time.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach for the Evaluation of Under Deposit Corrosion in Marine Environments Using Combined Analysis by Electrochemical Impedance Spectroscopy and Electrochemical Noise

Hoseinieh

Homborg

Shahrabi

et al. 2016

Electrochimica Acta

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“…14,15 Each of the corrosion processes occurring on a metal surface was believed to give distinct noise characteristics in the time domain. 11 From the time records, parameters like noise resistance , localisation index (LI) and roll-off slopes of [16][17][18][19][20][21][22][23][24][25] However, these re- 26,27 The aim of the present work was to analyse the EN signals from DSS 2101 electrodes immersed in various environments to characterise the mechanisms of different types of corrosion. Results of analysis were also compared with those of linear polarisation (LP) and electrochemical impedance spectroscopy (EIS).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical noise analysis of duplex stainless steel 2101 exposed to different corrosive solutions

Jiang

Guo

et al. 2016

Corrosion Engineering, Science and Technology

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The corrosion behaviour of duplex stainless steel 2101 exposed to 0.1 wt-%NaOH, 5.0 wt-%H 2 SO 4 and 6.0 wt-%FeCl 3 solutions was investigated with an electrochemical noise technique. The time records revealed salient features of the steel in the three solutions, and the corresponding corrosion morphologies were shown. The slopes of the power spectral density plots of current and potential noises were associated with the nature of corrosion attack. The corrosion rates in the three media were reflected by the noise resistance, presenting good correlation with the results from linear polarisation and electrochemical impedance spectroscopy. research has been dedicated to the studies of the DSS. carbon steel, aluminium, iron and copper, and limited ported data have been obtained on stainless steel, mild steel, terials and environments. of ma dying the nature of corrosion processes on a wide range vestigators have determined the reliability of ENM for stu-ises can be obtained. During the past few years, many in-the power spectral density (PSD) of potential and current no-

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Application of transient analysis using Hilbert spectra of electrochemical noise to the identification of corrosion inhibition

Cited by 37 publications

References 53 publications

A Complementary Electrochemical Approach for Time-Resolved Evaluation of Corrosion Inhibitor Performance

A Complementary Electrochemical Approach for Time-Resolved Evaluation of Corrosion Inhibitor Performance

A Novel Approach for the Evaluation of Under Deposit Corrosion in Marine Environments Using Combined Analysis by Electrochemical Impedance Spectroscopy and Electrochemical Noise

Electrochemical noise analysis of duplex stainless steel 2101 exposed to different corrosive solutions

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