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

doi:10.1016/j.corsci.2020.109045

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

Mechanical And Aerospace Engineering

Research output: Contribution to journal › Article › peer-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 language	English
Article number	109045
Number of pages	26
Journal	Corrosion Science
Volume	176
Early online date	1 Oct 2020
DOIs	https://doi.org/10.1016/j.corsci.2020.109045
Publication status	Published - Nov 2020

Keywords

carbon steel
slurry
erosion corrosion
numerical simulation

Access to Document

10.1016/j.corsci.2020.109045

https://www.sciencedirect.com/journal/corrosion-science

Embargoed Document

Stack-etal-CS-2020-A-multiphysics-approach-to-modelling-the-erosion-enhanced-corrosion
Accepted author manuscript, 1.4 MB
Licence: CC BY-NC-ND 4.0
Embargo ends: 1/10/21

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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.",

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AU - Stack, Margaret M

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N2 - 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.

AB - 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.

KW - carbon steel

KW - slurry

KW - erosion corrosion

KW - numerical simulation

UR - https://www.sciencedirect.com/journal/corrosion-science

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