Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

08382 Rp Measurements: Potentiostatically or galvanostatically?

Picture for 08382 Rp Measurements: Potentiostatically or galvanostatically?
Available for download
Product Number: 51300-08382-SG
ISBN: 08382 2008 CP
Author: François Huet, Ricardo Nogueira, and Aude Guyader
Publication Date: 2008
$0.00
$20.00
$20.00
The estimation of corrosion current in field applications is mostly based on the Stern-Geary relationship and direct measurement of the polarization resistance Rp mainly with the linear polarization resistance technique but also with the electrochemical impedance technique. Technical advances in the last years effectively made available very simple and practical devices for field corrosion engineers. In spite of their convenience, the measurements reliability is based upon basic assumptions, such as the system linearity for example, which are not a priori ensured and can be the source of measurement errors. One of these drawbacks is related to the drift of the corrosion potential during the measurements. The present paper investigates the influence of the non-stationarity of the system on Rp measurements. Values of Rp measured with the electrochemical impedance and linear polarization resistance techniques under potentiostatic or galvanostatic control were compared in the case of iron corrosion in stagnant and circulating brine solutions.
The estimation of corrosion current in field applications is mostly based on the Stern-Geary relationship and direct measurement of the polarization resistance Rp mainly with the linear polarization resistance technique but also with the electrochemical impedance technique. Technical advances in the last years effectively made available very simple and practical devices for field corrosion engineers. In spite of their convenience, the measurements reliability is based upon basic assumptions, such as the system linearity for example, which are not a priori ensured and can be the source of measurement errors. One of these drawbacks is related to the drift of the corrosion potential during the measurements. The present paper investigates the influence of the non-stationarity of the system on Rp measurements. Values of Rp measured with the electrochemical impedance and linear polarization resistance techniques under potentiostatic or galvanostatic control were compared in the case of iron corrosion in stagnant and circulating brine solutions.
Product tags
Also Purchased
Picture for 08388 Corrosion and Fouling of Carbon Steel in Petrochemical Environments
Available for download

08388 Corrosion and Fouling of Carbon Steel in Petrochemical Environments

Product Number: 51300-08388-SG
ISBN: 08388 2008 CP
Author: Bill Santos and Fraser King
Publication Date: 2008
$20.00
Picture for 08389 Microelectrochemical Techniques for Characterization of the Behavior of Corrosion Resistant Al
Available for download

08389 Microelectrochemical Techniques for Characterization of the Behavior of Corrosion Resistant Alloys (CRA)

Product Number: 51300-08389-SG
ISBN: 08389 2008 CP
Author: Thomas Ladwein, Matthias Sorg, and Jens Maier
Publication Date: 2008
$20.00
Picture for 08384 Electrochemical Corrosion Study of Silicon in Potassium Formate Solutions
Available for download

08384 Electrochemical Corrosion Study of Silicon in Potassium Formate Solutions

Product Number: 51300-08384-SG
ISBN: 08384 2008 CP
Author: M. Wang and S. Mohapatra
Publication Date: 2008
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support