Based in Danville, California, David Aimal Kashifi works with Corrosion Protection Solutions as a senior corrosion engineer. Unaddressed, corrosion can cause failure in pipes and bridges, and pose a threat to public safety and the environment. In working to stop and reverse corrosion, which affects metals, David Aimal Kashifi employs specialized cathodic protection techniques.
Developed in the UK in the early 19th century by Sir Humphrey Davy, cathodic protection was designed with a focus on naval vessels. The technique addresses galvanic corrosion, a form of deterioration which occurs when dissimilar metals make physical or electrical contact. An electrochemical process, cathodic protection involves concentrating a galvanic cell’s oxidation at the anode and suppressing cathode corrosion within the same cell.
A simple example of this is the DC cell, where the more active metal is transformed into the anode and corrodes, while the less active metal remains protected as a cathode. In a similar fashion, a sacrificial magnesium anode can be used to cathodically protect a steel pipeline.
Developed in the UK in the early 19th century by Sir Humphrey Davy, cathodic protection was designed with a focus on naval vessels. The technique addresses galvanic corrosion, a form of deterioration which occurs when dissimilar metals make physical or electrical contact. An electrochemical process, cathodic protection involves concentrating a galvanic cell’s oxidation at the anode and suppressing cathode corrosion within the same cell.
A simple example of this is the DC cell, where the more active metal is transformed into the anode and corrodes, while the less active metal remains protected as a cathode. In a similar fashion, a sacrificial magnesium anode can be used to cathodically protect a steel pipeline.