Corrosion-induced copper runoff from naturally and pre-patinated copper in a marine environment
2006 (English)In: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 48, no 12, 4316-4338 p.Article in journal (Refereed) Published
Corrosion-induced copper runoff has been monitored for copper sheet, naturally patinated copper and pre-patinated copper, with and without surface treatments, in a marine environment during one year. The study comprises solution measurements on total copper runoff rates, sulphates and chlorides released from the patina, and parallel surface analytical studies on patina formation, combined with electrochemical impedance measurements on changes in barrier properties during exposure. Bioassay tests and model predictions were applied to elucidate copper bioavailability at the immediate release situation. The runoff rate of copper was significantly lower compared to the corrosion rate throughout the exposure period. At comparable rain quantities, copper runoff rates were significantly 66 lower at the marine site compared to similar data obtained in an urban environment. The bioavailable concentration of released copper was significantly lower compared to the total copper concentration.
Place, publisher, year, edition, pages
2006. Vol. 48, no 12, 4316-4338 p.
copper, runoff studies, atmospheric corrosion, chloride deposition, marine environment
Other Materials Engineering
IdentifiersURN: urn:nbn:se:kth:diva-5994DOI: 10.1016/j.corsci.2006.04.004ISI: 000242766300031ScopusID: 2-s2.0-33750620932OAI: oai:DiVA.org:kth-5994DiVA: diva2:10557
QC 20100906. Uppdaterad från In press till Published (20100906)2006-06-142006-06-142010-09-06Bibliographically approved