Nickel Entrapped K10-Montmorillonite Composite Incorporated Al Alloy for Cathodic Protection

Electrochemical Evaluation of Polyvinyl Butyral Coating Containing Polypyrrole/ZnO Nanocomposite for Corrosion protection of Al Alloy

In this work, polypyrrole/ZnO nanocomposite (PPy/ZnO NC) was produced through synthesis of polypyrrole polymer in the presence of ZnO nanoparticles. The corrosion behavior of polyvinyl butyral coatings without and with different weight percentages of nanocomposite on the surface of 7075 Al alloy was investigated in 3.5% NaCl solution at different immersion times using electrochemical impedance ...

An Electrochemical Measurement for Evaluating the Cathodic Disbondment of Buried Pipeline Coatings under Cathodic Protection

Steel pipelines are susceptible to corrosion by the action of corrosive substance in the environment and one of the most common failure modes in buried pipeline coatingis cathodic disbondment. Consequently, Electrochemical Impedance Spectroscopy (EIS) was used to assess the effect of three important parameters, the thickness of coating, the artificial defect ...

Maintenance of Cathodic Protection Systems

Corrosion and Cathodic Protection Theory

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4.18 Principles of Cathodic Protection

4.18.1 Historical Background 2747 4.18.2 Electrochemical Principles 2748 4.18.2.1 Aqueous Corrosion 2748 4.18.2.2 Cathodic Protection 2748 4.18.2.3 Oxygen Reduction 2749 4.18.2.4 Hydrogen Evolution 2750 4.18.3 Methods of Applying Cathodic Protection 2751 4.18.3.1 Impressed Current Method 2751 4.18.3.2 Sacrificial Anodes 2752 4.18.4 Proof of Protection 2753 4.18.4.1 Steel 2753 4.18.4.2 Other Met...