Tribocorrosion

1. Tribocorrosion: definitions and relevance

2. Corrosion basis

2.1. Electrochemical reactions in a corrosion system

2.2 Corrosion rate and Faraday's law

2.3 Electrode potential

2.4 Evans diagrams: corrosion rate versus electrode potential

2.5 Corrosion types

3. Tribology basis

3.1 Surfaces and contact mechanics

3.1.1 Elastic contact

3.1.2 Plastic contact

3.2 Friction

3.3 Wear

3.4 Lubrication

4. Tribocorrosion phenomena and concepts

4.1 Effect of corrosion on wear

4.2 Effect of wear on corrosion

4.3 Third bodies and transfer films

4.4 Models

5. How to approach a tribocorrosion system

5.1 Phase I: Identification of the problem

5.2 Phase II: Description of the system

5.2.1 Environment

5.2.2 Material

5.2.3 Mechanics

5.3 Phase III: Choice of experimental set-up

5.4 Phase IV: Experiment configuration

5.5 Phase V: Interpretation and outcomes

6. Experimental techniques for tribocorrosion

6.1 Sliding tribocorrosion

6.2 Fretting corrosion

6.3 Micro-abrasion corrosion

6.4 Erosion corrosion

7. Characterisation of worn surfaces

8. Case studies

8.1 Tribocorrosion in pressurized water reactors (PWR)

8.2 Tribocorrosion and Chemo-Mechanical Polishing of Tungsten

8.3 Tribocorrosion in oil/water lubricant emulsions

8.4 Hip joint simulator electrochemically instrumented

8.5 Surface treatments against tribocorrosion in biomedical implants

8.6 Tribocorrosion of hydraulic cylinders in offshore applications

9 References

10 Annex

I Corrosion rate

II Synopsis of electrode potential

III Reference electrodes

IV Surface topography