In situ electrochemical impedance and noise measurements of corroding stainless steel in high temperature water

Macák, Jan; Sajdl, Petr; Kučera, Pavel; Novotný, Radek; Vosta, J.

doi:10.1016/j.electacta.2005.10.013

Cited by 59 publications

(27 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The measurement setup was described in detail earlier [24]. Working electrodes were prepared from PWR steam generator tube made of austenitic stainless steel 08CH18N10Tequivalent to ASTM A276-82 Type 321.…”

Section: Experimental Approach 21 Specimens and Environmentsmentioning

confidence: 99%

“…Sum of elements R 1 and R 2 gives solution resistance R e . The other impedance contributions can be ascribed to the space charge layer capacitance response in the oxide, which can be obtained by Jonscher analysis [25,26] performed in the corresponding frequency range-domain B [24], the dispersive double layer capacitance at the oxide-electrolyte interface forming with the polarization resistance a time constant (domain C) and the low frequency edge (approximately below 10 À2 Hz, domain D) which is dominated by the impedance of the mass transfer process. The dispersive double layer capacitance C dl was approximated by a constant phase element (CPE), impedance of which can be expressed as Z CPE ¼ Q À1 (jv) Àn where Q is the CPE coefficient, n the CPE exponent, j the imaginary unit and v is angular frequency.…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

“…As a result domains C and D are partially overlapped. If low frequency data (domain D) were in such case neglected and polarization resistance values were assessed by extrapolation of high and medium frequency data (B þ C), overestimated values of polarization resistance were obtained [27] as was discussed in detail elsewhere [28]. The R p data obtained from the fit are compared with the noise resistance data in Figs.…”

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

“…In the previous paper [24], a detailed analysis of the EIS data of 08CH18N10T steel measured at 280 8C in alkalized water was presented. In this paper, the application is described of in situ EN measurements performed under the same conditions and designed to obtain real time corrosion rate values.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Evaluation of 08CH18N10T stainless steel corrosion in subcritical water by electrochemical noise analysis

Kučera

Macák

Sajdl

et al. 2008

Materials & Corrosion

View full text Add to dashboard Cite

The corrosion behaviour of pressurized water reactor (PWR) steam generator tube material (08CH18N10T steel) was studied by electrochemical noise (EN) measurements and electrochemical impedance spectroscopy in high-temperature water at 280 8C and 8 MPa. Long-term measurements were performed in two electrolytes: (i) deionised water alkalized to pH 25 ¼ 9.5 by KOH; (ii) the same electrolyte with 200 ppm of chlorides added (as KCl). The noise data were processed by two filtering methods and the noise resistance and spectral noise resistance values were calculated. Different contributions to the total impedance were identified and the polarization resistance values were calculated from EIS data. Noise and polarization resistances were compared and the influence of filtering methods was discussed. Instantaneous corrosion data were transformed to integral ones and comparison with mean corrosion current estimated from the oxide thickness was made. It was confirmed that the crucial point of EN analysis is selection of proper cut-off frequency in high-pass fast Fourier transform (HP-FFT).

show abstract

Section: Experimental Approach 21 Specimens and Environmentsmentioning

confidence: 99%

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

Section: Electrochemical Impedance Spectroscopy (Eis)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of 08CH18N10T stainless steel corrosion in subcritical water by electrochemical noise analysis

Kučera

Macák

Sajdl

et al. 2008

Materials & Corrosion

View full text Add to dashboard Cite

show abstract

“…This advantage allows these alloys to use in biomedical, food and chemical, pulp and paper chemical, petrochemical, heat exchange and nuclear power plant industries [1][2][3][4]. However, most of these applications are suffering from their relatively low hardness and poor tribological properties.…”

Section: Introductionmentioning

confidence: 99%

Corrosion performance and tribological properties of carbonitrided 304 stainless steel

El-Rahman¹,

El-Hossary²,

Prokert³

et al. 2012

Corrosion Resistance

View full text Add to dashboard Cite

Corrosion behavior of different parts of the weld of 316L/52M/A508 dissimilar metal welded joint in simulated pressurized water reactor primary water

Ding

Zhang

Wang

et al. 2015

Materials & Corrosion

View full text Add to dashboard Cite

The electrochemical behavior and oxide film structure of the weld of 316L/52M/A508 dissimilar metal welded joints were investigated via scanning electron microscopy (SEM), potentiodynamic polarization measurements, electrochemical impedance spectroscopy (EIS), and X‐ray photoelectron spectroscopy (XPS). The electrochemical measurements revealed that the weld materials could be arranged in descending order of protectiveness of the oxide film formed on their surface; that is, Alloy52Mw > Alloy52Mb > C52M > C308. The results of EIS and XPS analyses showed that the oxide films formed on these materials were duplex‐structured; this duplex structure consisted of a Cr‐rich (in 52M nickel‐based weld materials) or Cr/Fe‐rich (in C308 stainless steel weld materials) inner layer and a Ni/Fe‐rich (in 52M nickel‐based weld materials) or Fe‐rich (in 308 stainless steel weld materials) porous outer layer.

show abstract

In situ electrochemical impedance and noise measurements of corroding stainless steel in high temperature water

Cited by 59 publications

References 30 publications

Evaluation of 08CH18N10T stainless steel corrosion in subcritical water by electrochemical noise analysis

Evaluation of 08CH18N10T stainless steel corrosion in subcritical water by electrochemical noise analysis

Corrosion performance and tribological properties of carbonitrided 304 stainless steel

Corrosion behavior of different parts of the weld of 316L/52M/A508 dissimilar metal welded joint in simulated pressurized water reactor primary water

Contact Info

Product

Resources

About