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Cathodic over protection by sacrificial anodes – a case study on magnesium anodes
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 2016 |
| Abstract | In recent years, many investigations were achieved on destructive effects of cathodic over protection on coated structures. Obviously, using protective coating reduces the current required for the cathodic protection while the excessive current can be resulted to the excessive hydrogen evolving and creates alkaline conditions. Among different types of coatings, poly-olefins are more vulnerable to disbondment while the brittleness of steel is also expectable for the high strength types. In contrast with impressed current cathodic protection systems, over protection by galvanic anode is rarely reported as even thought impossible. As a case study, the present work provide the actual experience and detailed analysis of a buried pipeline coated by three layer poly ethylene which disbonded very quickly in the presence of magnesium anodes. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://eurocorr.efcweb.org/2016/abstracts/22/52387.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
