Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For corrosion
Reexamination Certificate
2006-08-04
2009-11-24
Neckel, Alexa D (Department: 1795)
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For corrosion
C205S776500, C324S700000, C324S721000, C324S071200, C204S404000
Reexamination Certificate
active
07622030
ABSTRACT:
Simultaneous determination of general corrosion and localized corrosion rate measurements is achieved with polarization applied by the electrodes themselves rather than externally applied polarization. Two or more working electrodes may be galvanically coupled. A localized pitting corrosion event on one of the electrodes will lead to a potential transient. The area within the potential transient is measured with the baseline being the initial starting potential. This gives localized corrosion as a function of time. The relationship Rp=ΔV/ΔI is calculated, where Rp is the polarization resistance of the working electrodes and is a measure of generalized corrosion rate.
REFERENCES:
patent: 5139627 (1992-08-01), Eden et al.
patent: 5275704 (1994-01-01), Yang
patent: 5888374 (1999-03-01), Pope et al.
patent: 6280603 (2001-08-01), Jovancicevic et al.
patent: 2005/0211570 (2005-09-01), Jovancicevic et al.
patent: 2 218 521 (1999-11-01), None
patent: 2 365 977 (2002-02-01), None
B. H. Vassos, et al., Electroanalytical Chemistry, 1983, pp. 230-235, Wiley-Interscience, NY.
J. L. Dawson, et al., “Electrochemical Measurements for Inhibitor Assessments,” Corrosion 93, NACE Annual Conference and Corrosion Show, Paper No. 108, 1993, pp. 108/1-108/19.
Gill Raymond Paul
Hammonds Paul
Jovancicevic Vladimir
Mok Wai Yeung
Baker Hughes Incorporated
Kaur Gurpreet
Mossman Kumar & Tyler PC
Neckel Alexa D
LandOfFree
General and localized corrosion rate measurements does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with General and localized corrosion rate measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and General and localized corrosion rate measurements will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4098865