Research on corrosion rate assessment of buried pipelines under dynamic metro stray current

Du, Yong; Qin, Huimin; Liu, Jie; Tang, Dezhi

doi:10.1002/maco.202012082

Cited by 10 publications

(2 citation statements)

References 15 publications

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“…Corrosion monitoring of pipeline systems is always very important to ensure the safety production and transportation in the multiple industries, such as oil and gas, water supply, and chemical processing. The traditional method is usually to employ the corrosion coupons to estimate the corrosion rate [1,2]. However, this method is time consuming and labor intensive due to the periodically measurement, and it is difficult to realize the on-line monitoring.…”

Section: Introductionmentioning

confidence: 99%

Design and performance evaluation of electromechanical impedance instrumented quantitative corrosion measuring probe based on conical rods

Wang¹,

Wen²,

Liu³

et al. 2022

Smart Mater. Struct.

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Previous study has proved that using electromechanical impedance (EMI) instrumented bar-type corrosion measuring probe can realize the quantitative assessment of the corrosion amount. To gain more insights into the working mechanism and design better probes, this work examined a new type of corrosion measuring probe based on the conical rod, and evaluated their performance. Theoretical model of this type of new probes was established based on one dimensional piezo-elasticity theory, and the electrical impedance was derived to obtain first-order resonant and anti-resonant frequencies in longitudinal vibration mode. Two experiments were performed to validate the feasibility of the probe for corrosion measurement, including the artificial uniform corrosion experiment and the accelerated corrosion test. Comparisons between the theoretical predictions and the experimental results from the artificial uniform corrosion experiment were made, and good agreement was found. Effects of piezoelectric patch thickness and cone angle on first resonant and anti-resonant frequencies were also analyzed. In addition, a wireless impedance measurement system was preliminarily realized, which is very promising in developing the low cost and high accuracy online real-time monitoring technology for the pipeline corrosion monitoring.

show abstract

Section: Introductionmentioning

confidence: 99%

Design and performance evaluation of electromechanical impedance instrumented quantitative corrosion measuring probe based on conical rods

Wang¹,

Wen²,

Liu³

et al. 2022

Smart Mater. Struct.

View full text Add to dashboard Cite

show abstract

“…Traditional pipeline corrosion monitoring methods usually monitor corrosion by measuring the mass loss of corrosion specimens [2,3], which is time-consuming and labor-intensive and does not allow for online monitoring. Another type of monitoring method monitors the corrosion process by electrochemical principles, including resistance probes [4], halfcell potential method [5] and others.…”

Section: Introductionmentioning

confidence: 99%

Performance study of novel metal corrosion probes based on the adjust method of series and parallel connections

Lan,

Wang,

Wang

et al. 2024

Meas. Sci. Technol.

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Rod-type metal corrosion probes based on electromechanical impedance (EMI) technique can quantitatively assess the amount of corrosion, which have a promising application in pipeline corrosion monitoring and have received more and more attention. In the design of piezoelectric smart devices, electrical series and parallel connections are very important and effective adjust method to improve the device performance, but it is yet to be used in the probe design. In this work, a kind of novel metal corrosion probe with two piezoelectric elements in series and parallel connections was proposed, and its performance was investigated comprehensively by combining theoretical analysis with experiment research. Theoretical models of the proposed probe in the longitudinal vibration mode for both series and parallel connections were established, and verified by the experimental results. Influences of the thicknesses of piezoelectric layer and ceramic layer on the probe performance were analyzed. Artificial quantitative corrosion tests and accelerated corrosion tests were designed to evaluate the quantitative corrosion monitoring capacity. Temperature sensitivity tests were conducted to study the temperature dependence. The wireless impedance measurement was performed to confirm the online monitoring ability. Comparisons for the probe performance between the series and parallel connections were also presented. This work provided a comprehensive understanding for this kind of novel probe, which is beneficial to develop low-cost, high-precision, high-stability pipeline corrosion real-time monitoring technology.

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Frequency characteristics analysis of pipe-to-soil potential under metro stray current interference using continuous wavelet transform method

Dong,

Zhang,

Gan

et al. 2023

Construction and Building Materials

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Research on corrosion rate assessment of buried pipelines under dynamic metro stray current

Cited by 10 publications

References 15 publications

Design and performance evaluation of electromechanical impedance instrumented quantitative corrosion measuring probe based on conical rods

Design and performance evaluation of electromechanical impedance instrumented quantitative corrosion measuring probe based on conical rods

Performance study of novel metal corrosion probes based on the adjust method of series and parallel connections

Frequency characteristics analysis of pipe-to-soil potential under metro stray current interference using continuous wavelet transform method

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