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Technical note: simulated transient loss of cathodic protection for buried pipelines

journal contribution
posted on 01.05.2005, 00:00 authored by N Birbilis, L J Holloway, Maria ForsythMaria Forsyth
The effect of loss of cathodic protection (CP) on steel in soil is presented for simulated (anodic) telluric currents over and above CP currents. The potential of the steel is intentionally shifted to O V vs. silver/silver chloride (Ag/AgCl, saturated) for 20% of the test time in a cyclic manner (with a number of different cycle times tested). It is seen that the level of corrosion experienced by the steel is dominated by the length of individual transients and not cumulative anodic exposure. The nature of the soil was found to be important, with clay soil leading to significantly more corrosion than sandy soil.

History

Journal

Corrosion

Volume

61

Issue

5

Pagination

498 - 501

Publisher

NACE International

Location

Houston, Tex.

ISSN

0010-9312

eISSN

1938-159X

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2005, NACE International