- Title
- Corrosion of isolated and electrically-connected steel coupons in temperate coastal seawater
- Creator
- Jeffrey, Robert J.; Melchers, Robert E.
- Relation
- Corrosion & Prevention 2009: The Management of Infrastructure Deterioration. Corrosion & Prevention 2009: The Management of Infrastructure Deterioration: Conference Proceedings (Coffs Harbour, N.S.W. 15-18 November, 2009)
- Relation
- http://www.corrosion.com.au/NewsEvents/ACAAnnualConference/tabid/2435/language/en-AU/Default.aspx
- Publisher
- Australasian Corrosion Association
- Resource Type
- conference paper
- Date
- 2009
- Description
- Marine infrastructure such a sheet piling, bridge piles and the legs of offshore oil rigs often is exposed to the very corrosive tidal and splash zone environments. In these the corrosion losses are known to vary significantly with elevation and with the electrical conductivity between the areas of steel. Individual coupons typically show much more corrosion in the tidal zone that electrically connected coupons and continuous strips. Classical results are available as well as results from other locations but the potential for water pollution to be involved in the reported observations has not been clarified. Similarly, whether water velocity played a part in the results available in the literature also remains uncertain. As part of a program to develop guidelines for engineering and asset management purposes a new set of tests was conducted at Jervis Bay on the East coast of Australia in essentially clean coastal waters with very low water velocities. Isolated steel coupons, electrically connected steel coupons and continuous steel strips were exposed in the tidal zone. The corrosion profiles were found to be similar to the results available in the literature suggesting that water pollution and water velocity were not significant factors in the classical results.
- Subject
- steel; seawater; strips; coupons; water pollution; water velocity
- Identifier
- uon:9062
- Identifier
- http://hdl.handle.net/1959.13/920072
- Identifier
- ISSN:1442-0139
- Full Text
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