Corrosion monitoring system based on measurements and analysis of electrochemical noise
- Univ. of Ljubljana (Slovenia). J. Stefan Inst.
- Univ. of Maribor (Slovenia). Technical Faculty
A corrosion monitoring system using electrochemical noise measurements and their numerical analysis is described. Electrochemical noise was measured in a freely corroding system containing three identical metal electrodes. A voltage signal generated by the first pair of electrodes and a current signal generated by the second pair were measured and the data fed into a computer. A mathematical model including signal processing and pattern recognition was developed and implemented in computer software. Analysis of the electrochemical noise enabled determination of the corrosion rate and the corrosion type. The reliability of the corrosion monitoring system was tested with various reference methods (visual inspection, SEM analysis, I vs E curves, electrical resistance). Tests were performed on steel and aluminium in aqueous solutions of various pH and conductivity values.
- OSTI ID:
- 80087
- Report Number(s):
- CONF-940222-; TRN: IM9532%%214
- Resource Relation:
- Conference: Corrosion 94: National Association of Corrosion Engineers (NACE) international annual conference, Baltimore, MD (United States), 28 Feb - 4 Mar 1994; Other Information: PBD: 1994; Related Information: Is Part Of Corrosion/94 conference papers; PB: 5005 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electrochemical noise measurement: The definitive in-situ technique for corrosion applications?
Electrochemical noise based corrosion monitoring: FY 2001 final report
Related Subjects
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
STAINLESS STEELS
ELECTROCHEMICAL CORROSION
ACOUSTIC EMISSION TESTING
ALUMINIUM
CORROSION PRODUCTS
MONITORING
ON-LINE MEASUREMENT SYSTEMS
MATHEMATICAL MODELS
DATA ACQUISITION
DATA ANALYSIS
COMPUTER CALCULATIONS
ELECTRIC CONDUCTIVITY
THERMAL POWER PLANTS
COOLING SYSTEMS
EXPERIMENTAL DATA