| Cathodic Protection - History: 1824: Earliest Practical Use
Sir Humphrey Davy's work on protecting the copper sheathing on wooden hulls in the British
Navy by sacrificial zinc or iron anodes is generally considered to be the earliest example
of practical cathodic protection.
The following reference has been cited by others: Davy, Humphrey:
"The Beginnings of Cathodic Protection", The Philosophical Transactions of the
Royal Society (London, 1824).
Sources:
I. McCaig, K. Davies and D. Farrell: "Cathodic protection of iron and steel",
Context, Issue No. 71, Institution of Historic Building Conservation (UK), 2001.
Corrosion-Doctors.org web site, "Cathodic Protection" section.
Zamanzadeh and Larkin (Matco Associates, Inc.)
1930's:
Beginning of cathodic protection (CP) applications on steel gas pipelines.
Source: Natural Resources Canada - Pipeline Integrity Internet Icon
(PICon).
1933: Protection Criterion:
The well known protection criterion for steel in soils of -850 mV with respect to a
saturated copper/copper sulfate reference electrode was reportedly pioneered by Robert
J. Kuhn, dating back to 1933 (Proc API, Section 4, 153, 1933)
Source: NACE Report CEA 54276 "Cathodic Protection Monitoring
for Buried Pipelines", Issue date: 1988, NACE International.
1937: Cathodic Protection of Steel by Galvanizing
1837, in Paris, Sorel (a civil engineer) took out patent for a process of coating iron by
dipping it in molten zinc, naming this process "galvanizing".
Source: C. Evans: "An Anecdotal History of the Galvanizing
Industry", 1992.
1980's:
First commercially viable CP systems for the steel reinforced concrete market
(experimental systems for bridges earlier in the 1970's).
Source: R. Brousseau: "Cathodic Protection for Steel
Reinforcement", IRC (NRC, Canada) publication "Construction Practice"
(1992-09-01) with original reference given as: Construction Canada, 34(5),
Sept-Oct. 1992, p. 29, pp. 32-33.
References/Literature:
Links:
The Royal Society at www.royalsoc.ac.uk/
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