An investigation on corrosion protection layers in pipelines transporting hydrocarbons

Authors

  • Gabriella Bolzon Politecnico di Milano, Department of Civil and Environmental Engineering
  • Giovanna Gabetta eni E&P Division
  • Bernardo Molinas Venezia Tecnologie S.p.A.

DOI:

https://doi.org/10.3221/IGF-ESIS.30.05

Keywords:

Pipelines

Abstract

Chemical reactions between carbon steel, water and chemical species produce corrosion layers (scales) on the internal surface of pipelines transporting hydrocarbons. Scales act as a diffusion barrier and prevent the progress of corrosion, a dangerous failure initiator. The protective film (10-100 ?m thickness) can be removed locally by the action of the internal flow, or by other mechanisms. Adhesion with the substrate and the failure modes of the corrosion layer can be tested by indentation. Some results are presented of experiments performed on specimens with scales grown in a controlled environment.

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Published

08-09-2014

How to Cite

An investigation on corrosion protection layers in pipelines transporting hydrocarbons. (2014). Frattura Ed Integrità Strutturale, 8(30), pages 31-39. https://doi.org/10.3221/IGF-ESIS.30.05