Understanding the influences of pre-corrosion on the erosion-corrosion performance of pipeline steel

Liu, Liang; Zhou, Qipiao; Wang, Xiaona; Huang, Yi

doi:10.1016/j.wear.2019.203151

Cited by 28 publications

(15 citation statements)

References 40 publications

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“…Due to their low cost, compact size, easy setup and short test durations, bench-scale laboratory tests are the most popular method for investigating E-C. Of these, the jet impingement test and slurry pot testers are the most popular techniques used today [9]. Other techniques used include the submerged jet impingement test [17,21], pin-on-disk test [22], electrode cells [23] and rotating cylinder electrode [24] to name a few. Aside from the latter two techniques, these experimental methods have been recently reviewed in [9,25].…”

Section: Numerical and Laboratory Scale Modelling 21 Laboratory Techn...mentioning

confidence: 99%

“…Implementation of this technique could be used to enhance understanding of erosion wear. Using combined wire beam and coupon electrodes, Xu et al [23] investigated the influence of pre-corrosion on E-C in X65 pipeline steel. Pre-corrosion is common in pipelines where residual moisture is present following pressure testing.…”

Section: Numerical and Laboratory Scale Modelling 21 Laboratory Techn...mentioning

confidence: 99%

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Erosion-Corrosion in Pipe Flows of Particle-Laden Liquids

Wood¹,

Cook²

2023

Advances in Slurry Technology

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The transmission of particle-bearing liquids in pipes has motivated continuing research into erosion mechanisms and the distribution of erosion rates over wetted surfaces. This chapter covers these initiatives with particular reference to erosion-corrosion modelling within bends and straight sections of cylindrical pipes manufactured in a variety of materials and transporting a variety of liquids. Erosion-corrosion modelling techniques such as submerged slurry jets and rotating cylinder electrodes have been used to study factors influencing material degradation. Improvements in computational fluid dynamics (CFD), such as the development of a moving deforming mesh (MDM) have improved the accuracy of CFD models in predicting pipe wall erosion rates. Combined discrete phase tracking approaches such as the CFD-DPM-DEM (discrete phase-discrete element model) have helped improve computational efficiency. Wall impact erosion models are calibrated using laboratory scale tests. Validation of CFD models using full-scale test data is rare, meaning their accuracy is still largely unreported. Material testing has helped to identify the resilience of prospective pipeline materials to erosion-corrosion, while modifications to internal geometry and pipe section have shown potential to improve erosion-corrosion resistance.

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Section: Numerical and Laboratory Scale Modelling 21 Laboratory Techn...mentioning

confidence: 99%

Section: Numerical and Laboratory Scale Modelling 21 Laboratory Techn...mentioning

confidence: 99%

Erosion-Corrosion in Pipe Flows of Particle-Laden Liquids

Wood¹,

Cook²

2023

Advances in Slurry Technology

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“…In order to measure the localized corrosion rate in flow dynamic conditions and to mimic the progression of flow-accelerated corrosion (FAC) and erosion-corrosion on a steel interface, a wire beam electrode (WBE) in combination with three-dimensional (3D) surface profilometry measurement was proposed to study the synergy between localized corrosion and erosion [53,104,105]. The WBE technique can effectively restore the electrochemical integrity and local chemical environment change on a one-piece steel sample.…”

Section: Advances In the Monitoring Of Erosion-corrosion Using Speciamentioning

confidence: 99%

“…It was introduced in Section 3.3 that WBE can be used as an effective method for visualizing the dynamic change of localized corrosion in a flowing slurry. Therefore, WBE was employed to probe the initiation and propagation of both FAC and erosion-corrosion under different test conditions [53,104,105]. It is seen from Figure 21a,b that the anodic sites would expand along the flow direction due to the analyte transportation from the tip pit to the downstream as shown in Figure 22a, finally leading to the formation of "flow mark" in FAC conditions.…”

Section: Understanding the Erosion-corrosion Behavior Of Steels Undermentioning

confidence: 99%

An Overview of Major Experimental Methods and Apparatus for Measuring and Investigating Erosion-Corrosion of Ferrous-Based Steels

Liu

Zhou

Wang

et al. 2020

Metals

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This paper firstly provides an overview of major efforts made over the past several decades on developing the test apparatus for the study of erosion-corrosion of ferrous-based steels. The merits and the application range of the set-ups, i.e., rotating disc/cylinder electrode system, slurry jet impingement rig, and test flow loop, are introduced. Secondly, the advantages and limitations of both non-electrochemical and electrochemical methods used for the measurement of erosion-corrosion are presented. Thereafter, the interaction between erosion and corrosion using a cyclic erosion-corrosion method was introduced. The synergy between erosion and corrosion for the steels under the passive state were analyzed on the basis of the breakdown and restoration of the passive film. In addition, the difference between the obtained erosion-enhanced corrosion and the corrosion-enhanced erosion using different experimental methods for steels under active corrosion was discussed. Finally, the interaction between the localized corrosion and erosion was studied through the dynamic change of the local current distribution revealed by the wire beam electrode.

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“…A wire beam electrode (WBE) provides a new method for monitoring the processes of localized corrosion and estimating the rate of localized corrosion [17]. A WBE can connect the cathode and anode corrosion processes and the cathode and anode areas of the corrosion surface, respectively [18].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Mechanism of L360 Pipeline Steel Coated with S8 in CO2-Cl− System at Different pH Values

Wang

et al. 2021

Metals

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The corrosion behavior of L360 pipeline steel coated with or without elemental sulfur (S8) in CO2–Cl− medium at different pH was studied. An autoclave was used to simulate the working conditions for forming the corrosion scale, and an electrochemical workstation with a three-electrode cell was used to analyze the electrochemical characterization of the corrosion scale. A wire beam electrode was used to determine the potential and current distribution, and scanning electron microscopy and X-ray diffraction were used to characterize the morphology and composition of the corrosion scale. The results showed that the deposition of S8 on the surface of the electrodes caused serious localized corrosion, especially under acidic conditions. The morphology and localized corrosion intensity index further proved that the deposition of S8 significantly promoted corrosion, especially pitting corrosion. Finally, a novel corrosion mechanism of L360 pipeline steel coated with S8 in a CO2-Cl− environment under acidic conditions was proposed, and we then modeled the theoretical mechanisms that explained the experimental results.

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Understanding the influences of pre-corrosion on the erosion-corrosion performance of pipeline steel

Cited by 28 publications

References 40 publications

Erosion-Corrosion in Pipe Flows of Particle-Laden Liquids

Erosion-Corrosion in Pipe Flows of Particle-Laden Liquids

An Overview of Major Experimental Methods and Apparatus for Measuring and Investigating Erosion-Corrosion of Ferrous-Based Steels

Corrosion Mechanism of L360 Pipeline Steel Coated with S8 in CO2-Cl− System at Different pH Values

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