How to prevent galvanic corrosion in seawater piping systems

Conference · Tue Oct 01 00:00:00 EDT 1996

OSTI ID:376082

Gartland, P O; Johnsen, R; Valen, S ^[1]; Rogne, T; Drugli, J M ^[2]

---

1. CorrOcean as, Trondheim (Norway)
2. SINTEF Corrosion Center, Trondheim (Norway)

Galvanic corrosion on the least nobel material can be a serious problem when two dissimilar materials are coupled together in a seawater piping system. Typical examples of such couples are carbon steel or copper nickel alloys coupled to stainless steel or titanium. Mathematical modeling and field experience show that the use of an insulating spool piece may efficiently reduce the galvanic corrosion when the attack has the character of general corrosion, but less efficiently when the attack is more localized. In the latter case the use of internal cathodic protection is a more effective protection against galvanic corrosion than the spool piece.

• OSTI ID: 376082
• Report Number(s): CONF-960389-; TRN: IM9642%%170
• Resource Relation: Conference: National Association of Corrosion Engineers (NACE) annual corrosion conference and exposition: water and waste water industries, Denver, CO (United States), 24-29 Mar 1996; Other Information: PBD: 1996; Related Information: Is Part Of Corrosion/96 conference papers; PB: 6615 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
CARBON STEELS
CORROSION PROTECTION
COPPER ALLOYS
NICKEL ALLOYS
STAINLESS STEELS
TITANIUM ALLOYS
OFFSHORE OPERATIONS
PIPES
MATHEMATICAL MODELS
COUPLINGS
ELECTROCHEMICAL CORROSION
BOUNDARY CONDITIONS
ELECTRIC POTENTIAL
ELECTRIC CURRENTS
CATHODIC PROTECTION