Control of Corrosion on Underwater Piles Seminar PPT & PDF Report

Control of Corrosion on Underwater Piles Seminar :

Corrosion Mechanism Of Steel In Sea Water :

• On steel piling in seawater, the more chemically active surface areas (anodes) are metallically coupled through the piling itself to the less chemically active surface areas (cathodes) resulting in a flow of electricity and corrosion of the anodic areas.

Corrosion Protection Methods :

• Protective Coating
  In order to protect metals from corrosion, the contact between the metal and the corrosive environment is to be cut off. This is done by coating the surface of metals with a continuous non-porous material inert to the corrosive atmosphere. Surface coatings are broadly classified into three:
• Metallic coatings
• Inorganic Coatings
• Organic Coatings

Standards and Codes :

There are no Indian standards codes as such for the control of corrosion. The latest editions of the following organizations’ standards, codes, and guidelines shall be used for the design of corrosion control systems:

1. NACE International (formerly The National Association of Corrosion Engineers)
2. RP0169 – Control of External Corrosion on Underground or Submerged Metallic Piping Systems
3. American Society for Testing and Materials (ASTM)
4. ASTM D512 – Standard Test Methods for Chloride Ion in Water
5. ASTM D516 – Standard Test Method for Sulfate Ion in Water
6. ASTM G51 – Standard Test Method for measuring pH of Soil for Use in Corrosion Testing

Content of the Seminar and pdf report for Control of Corrosion on Underwater Piles :

• INTRODUCTION
• CORROSION PROTECTION METHODS
• STANDARDS AND CODES
• CONCLUSION
• REFERENCES