April 2020, Vol. 247, No. 4
Features
Electromagnetic Measurements Used in NDT for Pipeline Coating in Mexico
By Omar Delgado-Rodríguez, IPICYT, Aleksandr Mousatov and Edgar Kiyoshi Nakamura-Labastida, Mexican Petroleum Institute and Vladimir Shevnin, Moscow State University Corrosion is the chemical process through which metal tries to return to its original or mineral state. In the case of buried pipelines, the metal is exposed to corrosive processes that may eventually cause ruptures with the consequent environmental and economic damages. The pipe coating is the main barrier against external corrosion, and it provides an excellent protection. However, over time, the coating is deteriorated due to water absorption, tension and aggression caused by the soil, bacterial action and other factors.

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