Corrosion Control Engineer
1. What is corrosion?
2. Corrosion Cell
3. How to detect corrosion
4. Corrosion prevention methods
4.1 Protective coating
4.2 Cathodic protection
5. Corrosion prevention in Manitoba Hydro
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Increase Energy
Natural State
InstallationProcessed Material
Back to Natural State
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
e-
Metallic Path
e-
e-
e-
- ions
e-
e-
e-
+ ions
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Iron - Fe
Electrolyte
Water, soil,
etc
Fe++
e-e-
2H+O=H2O Fe(OH)2
H2OOH-H+
OH-
O2
Fe++e-e-
H2O H+
Fe++
e-e- H2OOH-
H+
OH-
2Fe(OH)2 + O2==Fe2 O3 + H2O
e-e-
H2O H+Fe++
2Fe(OH)2 + O2==Fe2 O3 + H2O
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
H+
Electrolyte
Water, soil,
etc H2
e-
e-
H+
H+
H2
e-
e-
H+
H+
H0
e-
e-
H+
H0
H0
H0
H0
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Conventional
electric current
direction
Electrolyte
Active Noble
+--V
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
2011
• Monthly calibration
2013
• Yearly calibration
2015
• 20 years calibration
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
2011• Voltmeter
2015• Computerized Data-
collector
Monitoring & evaluation | Data collectors
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Corrosion Prevention Methods
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Corrosion Prevention Methods
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Corrosion Prevention Methods
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Corrosion Prevention Methods
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Cathodic protection by galvanic anodes
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Cathodic protection by
impressed current systems
Components of impressed current systems
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
Impressed current systems of
steel natural gas pipelines
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015
IEEE PES Winnipeg | Fernando Velandia P. Eng. | Corrosion in Action | October 2015