API 571 Certification (Corrosion & Materials) Practice Test

The term "microbial induced corrosion" specifically refers to corrosion that results from the activities of microorganisms, particularly bacteria. These microorganisms can metabolize nutrients and produce byproducts that are corrosive to metals or alter the local environment, leading to accelerated corrosion processes.

For instance, certain bacteria can form biofilms on metal surfaces, creating localized areas of low oxygen that may enhance conditions for corrosion. Some bacteria produce organic acids or sulfides as metabolic byproducts, which can also be damaging to metal structures. This phenomenon plays a significant role in various environments, such as pipelines, storage tanks, and marine environments, where bacteria can thrive.

Understanding microbial induced corrosion is critical for developing effective corrosion prevention and control strategies, as traditional methods may not adequately address the unique challenges posed by bacterial activity on metals.