| Electrochemical Corrosion
Monitoring - Historical Items: 1929 Ulick Richardson
(U.R.) Evans ("Father of modern science of corrosion and protection of metals"):
Linking of kinetic parameters (corrosion current) to thermodynamic parameters
(potentials) in publication "The Velocity and Distribution of the Corrosion of
Metals"; hence so-called "Evans diagrams" still in use in modern texts.
1938 Wagner and Traud:
Mixed potential theory formulated as basis for electrochemical corrosion theory - concept
of local anodes and cathodes at the free corrosion potential and basic foundation for
electrochemical corrosion kinetics.
1942 Hickling - Potentiostat:
The term "potentiostat" introduced by A. Hickling, who was also the designer of
such an historical electronic model. An article on the web site www.bio-logic.fr also
credits Hickling with the invention of the three electrode potentiostat (facilitating
automatic control of the cell potential) - "genius idea" and principle still in
use today. Potentiostats became widely used as laboratory corrosion measurement
instruments in the 1960's.
Source: H.S. Isaacs: "Aspects of Corrosion from the ECS
Publications", Journal of the Electrochemical Society", Vol. 149, No.12,
pp.S85-S87, 2002. (An ECS Centennial Series Article).
1950's:
Appearance of Pourbaix Diagrams.
1957 M. Stern and A.L. Geary:
Measurement of general corrosion rate by inverse of polarization resistance, from
potential and current measurements near the free corrosion potential. Widely used in d.c.
electrochemical corrosion monitoring instruments.
1960's Epelboin:
Development of electrochemical impedance spectroscopy (EIS), a.c. corrosion measurement
tools.
1968: Warren P. Iverson
Measurement of voltage transients (fluctuations) in corroding metals and alloys.
"... he (Warren Iverson) published a short
article in the Journal of the Electrochemical Society that many still quote as the first
paper in electrochemical noise ..."
Source: F. Huet, A. Bautista and U. Bertocci:
"Listening to Corrosion", The Electrochemical Society Interface, Winter 2001,
pp.40-43.
References/Literature:
M. Stern and A.L. Geary: "Electrochemical Polarization", Journal
of the Electrochemical Society", Vol. 104, No.1, 1957, p.56.
W.P. Iverson: "Transient Voltage Changes Produced in Corroding Metals
and Alloys", Journal Electrochemical Society, June 1968, pp.617-619.
Links:
KH Design and Development
www.khdesign.co.uk
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