Determination of Tafel slopes from coulostatically induced transients using an integral algorithm

Zhao, Yongtao; Guo, Xingpeng; Li, Haihong; Dong, Zehua

doi:10.1016/j.corsci.2005.11.007

Cited by 9 publications

(2 citation statements)

References 29 publications

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“…The coulostatic impulse method [1,2] is a powerful relaxation method for the study of electrode kinetics [3][4][5][6][7][8]. Important advantages are its relative insensitivity to ohmic drop, the large time scale that can be covered, and the fact that the overvoltage-time curve can be obtained in one rapid measurement [9,10].…”

Section: Introductionmentioning

confidence: 99%

Joint time–frequency signal de-noising of coulostatically-induced transients

Zhao

Guo

2007

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

Joint time–frequency signal de-noising of coulostatically-induced transients

Zhao

Guo

2007

Electrochimica Acta

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“…Recently, many studies have been done to investigate the application of potentiodynamic polarization method (8)(9)(10)(11)(12). Although the use of this method has been more conventional in recent years, it is encountered by many restrictions.…”

Section: Introductionmentioning

confidence: 99%

A Study on the Accuracy of the Tafel Extrapolation Method in HCl

2009

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Accuracy and validity of the Tafel extrapolation method for determining corrosion rates of carbon steel in 1,2 and 3M HCl solutions open to air is discussed. Corrosion rates obtained from polarization experiments were compared with that of weight loss method. For analysing data obtained from polarization experiments electrochemical impedance spectroscopy (EIS) measurements were performed before polarization experiments. The results showed that formation of a corrosion product film and increasing the polarization resistance (Rp) of this film with time cause the corrosion rates obtained from Tafel extrapolation tend to be higher than corrosion rates obtained from weight loss test.

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Investigation of the Addition of (NaPO3)6 to Al2O3 Ceramic Coatings Prepared on AlSi10Mg Selective Laser Melted Components via Micro-Arc Oxidation

Guo

Yuan

et al. 2021

J. of Materi Eng and Perform

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Al 2 O 3 ceramic coatings were prepared on the surface of AlSi10Mg selective laser-melted components via micro-arc oxidation. The microstructure and corrosion property of the coatings were investigated. Scanning-electron microscopy results indicated that the number of ''craters'' on the coatingsÕ surface increased with selective laser-melted energy density. The surface of the coatings became smooth with an increase in (NaPO 3 ) 6 content, and the number of ''craters'' decreased. X-ray diffraction and x-ray photoelectron spectroscopy results showed that the coatings were composed of c-Al 2 O 3 and a-Al 2 O 3 . In particular, c-Al 2 O 3 content increased and a-Al 2 O 3 appeared, surface roughness decreased from 2.22 lm to 1.21 lm. Meanwhile, corrosion current density decreased from 3.46e 2006 to 9.71e 2007 A cm 22 and the corrosion depth decreased from 4.62e 204 to 1.09e 205 mm/year. The morphologies of the coatings were influenced by the diameter of keyholes. The small keyholes were enclosed, and the inside of large keyholes formed microarc oxidation coatings. The addition of (NaPO 3 ) 6 increased the threshold value for obtaining consistent coatings.Keywords corrosion properties, micro-arc oxidation, (NaPO 3 ) 6 , selective laser melted

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Determination of Tafel slopes from coulostatically induced transients using an integral algorithm

Cited by 9 publications

References 29 publications

Joint time–frequency signal de-noising of coulostatically-induced transients

Joint time–frequency signal de-noising of coulostatically-induced transients

A Study on the Accuracy of the Tafel Extrapolation Method in HCl

Investigation of the Addition of (NaPO3)6 to Al2O3 Ceramic Coatings Prepared on AlSi10Mg Selective Laser Melted Components via Micro-Arc Oxidation

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