Investigating the micro-turbulent corrosion mechanism of pipeline defects based on a combined experimental and simulation approach

Yang, Liuyang; Zhang, Dalei; Fan, Haiming; Tan, Zhuowei; Xing, Shaohua; Guan, Xiaorui; Jiang, Xiaofeng

doi:10.1016/j.jngse.2022.104745

Cited by 13 publications

(2 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The working electrode was packaged with epoxy resin, as shown in figure 3. The WBE was corrosion testing system of galvanic current and potential based on the Labview environment [10]. Before the test, all the electrode wires were coupled together.…”

Section: Wbe Measurementsmentioning

confidence: 99%

CO₂ Corrosion of X80 Steel under High Shear Flow Fields

Dou,

Zhang,

2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Corrosion failure accidents owing to flow erosion and pipeline corrosion frequently occur during transportation. In this study, a high wall shear stress (WSS) experimental setup was established to conduct the online electrochemical corrosion test. The corrosion behavior of welded joints in NACE solution was studied by electrochemical experimental methods such as electrochemical impedance spectroscopy (EIS) and wire harness microelectrode (WBE). The results show that different areas of the welded joint show different corrosion phenomena in NACE solution. The weld metal (WM) has the significantly better corrosion resistance, while the base metal (BM) and heat-affected zone (HAZ) have worst corrosion resistance than WM. The current of the WM surface was cathodic current, while the current of the BM and HAZ surface were anode currents.

show abstract

Section: Wbe Measurementsmentioning

confidence: 99%

CO₂ Corrosion of X80 Steel under High Shear Flow Fields

Dou,

Zhang,

2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…Pertaining to the electrochemical field, the boundary conditions encompass insulation boundary conditions, cathodic boundary conditions, and anodic boundary conditions [17]. The soil domain, along with the auxiliary anode, is designated as insulated.…”

Section: Boundary Conditions 221 Modeling the Cathodic Protection Systemmentioning

confidence: 99%

Effect of DC grounding electrode currents on the corrosion interference behavior of cathodic protection of nearby pipelines

Chen,

Li,

Zhang

et al. 2023

Meas. Sci. Technol.

View full text Add to dashboard Cite

When operating a direct current (DC) transmission grounding electrode in single-pole return ground mode, transient currents traverse the soil, generating stray currents. These currents can intensify the corrosion of long-distance transmission pipelines near the grounding electrode, subsequently altering the pipeline’s cathodic protection potential. Previous investigations into the interference of grounding electrodes on pipeline cathodic protection have overlooked the cathodic protection systems themselves. Addressing this gap, we integrated COMSOL’s electrochemical module with its AC/DC module. To corroborate the accuracy of our COMSOL-based models, we devised specific validation experiments. Additionally, we crafted a COMSOL application builder interface to streamline computations. Consequently, we derived a multi-regression function to express the cathodic protection potential of the pipeline under varied factors and executed a regression tree classification for soil resistivity. To pinpoint optimal corrosion protection for pipelines, we simulated the cathodic protection of segmentally isolated pipelines, determining that potential excursions can be notably mitigated. This research offers insights into both disturbance evaluation and protective strategies for DC transmission and pipelines.

show abstract

CO2 corrosion of X80 steel welded joints under micro-turbulence induced by welding reinforcement height

Dou,

Li,

et al. 2023

J. Iron Steel Res. Int.

View full text Add to dashboard Cite

Investigating the micro-turbulent corrosion mechanism of pipeline defects based on a combined experimental and simulation approach

Cited by 13 publications

References 35 publications

CO₂ Corrosion of X80 Steel under High Shear Flow Fields

CO₂ Corrosion of X80 Steel under High Shear Flow Fields

Effect of DC grounding electrode currents on the corrosion interference behavior of cathodic protection of nearby pipelines

CO2 corrosion of X80 steel welded joints under micro-turbulence induced by welding reinforcement height

Contact Info

Product

Resources

About

Investigating the micro-turbulent corrosion mechanism of pipeline defects based on a combined experimental and simulation approach

Cited by 13 publications

References 35 publications

CO2 Corrosion of X80 Steel under High Shear Flow Fields

CO2 Corrosion of X80 Steel under High Shear Flow Fields

Effect of DC grounding electrode currents on the corrosion interference behavior of cathodic protection of nearby pipelines

CO2 corrosion of X80 steel welded joints under micro-turbulence induced by welding reinforcement height

Contact Info

Product

Resources

About

CO₂ Corrosion of X80 Steel under High Shear Flow Fields

CO₂ Corrosion of X80 Steel under High Shear Flow Fields