Flashcards
Corrosion
Cards in this deck (6)
- 1How Do You Prevent Corrosion?- Adequate design
- Quality construction
- Remove metal from the electrolyte
- Create a non-active electrolyte
- Use non-reactive metals
- Refurbishment and re-build/path-repair
- Electro-chemical techniques - 2What are the Four Electro-Chemical Techniques- Re-alkalisation
- Chloride extraction
- Electro-osmotic pulse
- Cathodic protection/prevention - 3What is Cathodic Protection?"The introduction of a more reactive metal to a common electrolyte, so that the existing metal becomes the cathode of a corrosion cell and the more reactive metal preferentially corrodes".
- 4Diagram of Cathodic Protection
- 5Reasons for Using Cathodic Protection1. Long term solution if maintained
2. Reduced quantity of repair work
3. Shorter programmes
4. Much less intrusive & involved than repair work.
5. Commercial benefits
5. Cheaper
6. Avoids incipient anode problems
7. Can be installed from new - 6Challenges of Cathodic Protection- Requires specialist skills & knowledge for all stages.
- Adds an extra design element to the project.
- Needs to be considered early on.
- Requires constant survey & testing during installation.
- Requires maintenance.
- Requires monitoring.
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- Undergraduate MIS & MRR Flashcards on Corrosion, created by d.moran-10 on 17/05/2014.
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- d.moran-10
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