An application of the coulostatic method to corrosion rate measurements

Suzuki, Masayuki; Kan'no, Ken‐ichi; Sato, Yuichi

doi:10.1002/maco.19800310507

Cited by 13 publications

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The polarization imposed to a Randles EC by a galvanostatic pulse, when interrupted, is attenuated exponentially according to the expression: [53][54] …”

Section: Other Methods Of Estimating the Rate Of Corrosionmentioning

confidence: 99%

Electrochemical Techniques for Studying Corrosion of Reinforcing Steel: Limitations and Advantages

González¹,

Miranda²,

Birbilis³

et al. 2005

CORROSION

View full text Add to dashboard Cite

This paper presents a comparison of the results obtained by different electrochemical techniques when applied to passive and active steel embedded in mortar or in simulated pore water solutions. The techniques investigated include polarization resistance by means of current or potential steps, potentiodynamic tests at different polarization rates, the application of potentiostatic and galvanostatic pulses, and electrochemical impedance spectroscopy (EIS). The differences between the corrosion current density (i corr ) values obtained using different techniques, or by applying the same technique in different conditions, are predicted by theory, and are often greater than an order of magnitude. Many of these errors, particularly in passive systems, are a result of incorrect application of the electrochemical techniques, rather than the techniques themselves being inadequate for probing the behavior of the steel/ concrete system. When electrochemical techniques are used correctly, they can provide fast, quantitative, and trustworthy data, although not precisely exact, regarding the corrosion rate of steel in concrete.

show abstract

“…The polarization imposed to a Randles EC by a galvanostatic pulse, when interrupted, is attenuated exponentially according to the expression: [53][54] …”

Section: Other Methods Of Estimating the Rate Of Corrosionmentioning

confidence: 99%

Electrochemical Techniques for Studying Corrosion of Reinforcing Steel: Limitations and Advantages

González¹,

Miranda²,

Birbilis³

et al. 2005

CORROSION

View full text Add to dashboard Cite

show abstract

“…The same considerations apply also as concerns the use of the coulostatic method [5] which permits to determine the value of the interphase capacitance through the analysis of the trend of the charging or decay curve. In fact, for an accurate application of this technique it is mandatory that the value of the free corrosion potential is stable.…”

Section: Introductionmentioning

confidence: 99%

A computer code for detecting deterioration of organic coatings through impedance measurements

Rocchini¹

1999

Materials and Corrosion

View full text Add to dashboard Cite

Some basic considerations about organic coatings are given and a simple electric network simulating the response of the metal‐coating system, exposed to an aggressive environment, to a sinusoidal signal of high frequency is examined. It is also proved that this approach provides reliable and correct information on the coating performance when the film defects have a negligible area. The computer program, developed to perform measurements over the [6 × 103, 6 × 104] Hz frequency interval and process experimental data with a prefixed model, is briefly discussed as concerns its main features which are the proper choice of the voltage amplitude to be applied to the system under investigation and the optimisation of the current range as a function of the operating frequency. Two interesting experimental applications are illustrated: the first one refers to carbon steel specimens painted with different commercial products and exposed in a salt‐spray cabinet. The second application is dealing with an epoxy coating applied to aluminium brass specimens that were exposed to artificial sea‐water at 40°C and having different flow rates. In both cases results were very promising and demonstrated the usefulness and validity of this methodology which is an effective way to face the problem to monitor the resistance to corrosion of composite systems.

show abstract

Reliability of electrochemical methods applied to the study of Alumina coated stainless steel prosthesis

Escudero

González

Ruiz

1986

Materials & Corrosion

View full text Add to dashboard Cite

show abstract

An application of the coulostatic method to corrosion rate measurements

Abstract: Kurzfassung

Cited by 13 publications

References 11 publications

Electrochemical Techniques for Studying Corrosion of Reinforcing Steel: Limitations and Advantages

Electrochemical Techniques for Studying Corrosion of Reinforcing Steel: Limitations and Advantages

A computer code for detecting deterioration of organic coatings through impedance measurements

Reliability of electrochemical methods applied to the study of Alumina coated stainless steel prosthesis

Contact Info

Product

Resources

About