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Galvanic corrosion
| Content Provider | Scilit |
|---|---|
| Author | Francis, Roger |
| Copyright Year | 2019 |
| Description | This chapter provides the causes of galvanic corrosion, the main factors affecting its severity, and some preventative measures that can be adopted for marine service conditions. Galvanic corrosion occurs when two metals with different corrosion potentials are in electrical contact while immersed in an electrically conducting, corrosive liquid. Materials coupled to metals that have more electropositive potentials are the ones that may suffer galvanic corrosion. The majority of practical situations involving galvanic corrosion develop in seawater under conditions in which the cathodic reaction is the reduction of dissolved oxygen. Atmospheric corrosion is somewhat different from full immersion in seawater and this influences galvanic corrosion as well. When the design is being completed and before any materials are purchased, there is the maximum opportunity to select galvanically compatible metals for the specific application. Two methods are used: impressed current and sacrificial anodes. A slightly different method of inhibition is deaeration, which usually can only be applied to recirculating systems. Book Name: The corrosion performance of metals for the marine environment: a basic guide |
| Related Links | https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/9780429298387-8&type=chapterpdf |
| Ending Page | 89 |
| Page Count | 16 |
| Starting Page | 74 |
| DOI | 10.1201/9780429298387-8 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2019-05-14 |
| Access Restriction | Open |
| Subject Keyword | Book Name: The Corrosion Performance of Metals for the Marine Environment: a Basic Guide Galvanic Corrosion Electrical Seawater Metals Different Corrosion Different Method |
| Content Type | Text |
| Resource Type | Chapter |
