Interaction between local corrosion and flow field of natural gas long-distance pipeline by artificial rectangular defect pit

Tan, Zhuowei; Wang, Zhenbo; Bai, Shuyu; Zhang, Dalei; Zhang, Shengzhu; Cheng, Y. Frank; Xing, Shaohua; You-hai, Jin

doi:10.1007/s42243-022-00754-y

Cited by 8 publications

(1 citation statement)

References 48 publications

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“…The CHI660D electrochemical workstation was employed to conduct the electrochemical experiment, and the test cycling cost 12 h. For the three-electrode system (figure 2), the reference electrode was high-purity zinc [7][8][9] and the counter-electrode was Pt. In the EIS test, the scanning range was 10MHz-0.01 Hz, the AC sine wave has an amplitude of 5 mV.…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

CO₂ Corrosion of X80 Steel under High Shear Flow Fields

Dou,

Zhang,

2023

J. Phys.: Conf. Ser.

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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.

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Section: Electrochemical Measurementsmentioning

confidence: 99%