Corrosion Monitoring

Definition - What does Corrosion Monitoring mean?

Corrosion monitoring involves the comprehensive monitoring of all crucial components, facilities, industrial materials as well as plants for any signs of corrosion.

Corrosion monitoring is important as it helps identify the rate, location as well as underlying corrosion causes. Through this monitoring, components of non-conforming alloy can be identified, as these are typically susceptible to hastened corrosion, which could lead to catastrophic failure.

Corrosion monitoring can offer great advantages in terms of safety management and preventive maintenance. Based on the data yielded by the monitoring, industries can make informed decisions not only on an object's remaining life, but also on other life extension techniques and cost-effective measures to solve corrosion problems.

Corrosionpedia explains Corrosion Monitoring

Corrosion monitoring involves control, measurement and prevention and covers a wide range of technical methods. This may include achieving anodic and cathodic protection, selection of materials, dosing of chemicals as well as the application of external and internal coatings.

In short, corrosion monitoring employs various techniques in order to identify the condition of the corrosive environment as well as the metal loss rate. It is a quantitative technique that evaluates corrosion control effectiveness that allows for the optimization of corrosion prevention and control methods.

Corrosion rates limit the operational life of plants. Measuring corrosion rates as well as the rate of corrosion remedy makes possible the most affordable plant operation while cutting down the life cycle expenses related to operation.

Advantages of corrosion monitoring include:

  • It provides an early warning when a damaging process situation exists which would result in failure caused by corrosion.
  • It helps in the study of the correlation changes and its effects on the corrosiveness of a system.
  • It can diagnose a specific corrosion problem and also identify the causes and parameters for controlling it like flow rate, temperature, pressure and more.
  • It evaluates the efficiency of certain corrosion control methods like optimal application determination and chemical inhibition.
  • It provides management information according to a particular plant's present conditions and maintenance requirements.

A wide range of corrosion monitoring techniques are available, and some of the most common include:

  • Electrical resistance (ER)
  • Hydrogen penetration
  • Corrosion coupons
  • Linear polarization resistance (LPR)
  • Ultrasonic
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