On a multiphysics approach to modelling the erosion–enhanced corrosion of low–alloy carbon steel in chloride containing environments

Magdalena Walczak , Shayan Sharifi, Margaret M Stack

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The effect of chloride on erosion-enhanced corrosion was studied experimentally and by a multiphysics algorithm developed to describe the erosion-corrosion interactions. API 5 L X65 steel was exposed to a slurry jet of different chloride content (0.005, 0.05 or 0.5 M) containing silica particles (250–350 μm). An electrochemical-transport-reaction model was used for numerical simulation of polarization curves. Visualization of the flow conditions was also carried out in this work. The effect of erosion on corrosion was found to be well described as a proportionality factor between the kinetics constants of the electrochemical reactions with and without the erodent. The presence of chloride was found to affect the system mainly through increased conductivity of the electrolyte.

Original languageEnglish
Article number109045
Number of pages26
JournalCorrosion Science
Volume176
Early online date1 Oct 2020
DOIs
Publication statusPublished - Nov 2020

Keywords

  • carbon steel
  • slurry
  • erosion corrosion
  • numerical simulation

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