Design of P110 steel wire beam electrode for high temperature and pressure environment and application for revealing corrosion mechanism
Anti-Corrosion Methods and Materials
ISSN: 0003-5599
Article publication date: 9 October 2023
Issue publication date: 20 November 2023
Abstract
Purpose
The purpose of this work is to design the wire beam electrode (WBE) of P110 steel and study its corrosion behavior and mechanism under high temperature and pressure.
Design/methodology/approach
Packaging materials of the new type P110 steel WBE and high pressure stable WBE structure were designed. A metallurgical microscope (XJP-3C) and scanning electron microscopy (EV0 MA15 Zeiss) with an energy dispersive spectrometer were used to analyze the microstructure and composition of the P110 steel. The electrochemical workstation (CS310, CorrTest Instrument Co., Ltd) with a WBE potential and current scanner was used to analyze the corrosion mechanism of P110 steel.
Findings
According to the analysis of Nyquist plots at different temperatures, the corrosion resistance of P110 steel decreases with the increase of temperature under atmospheric pressure. In addition, Rp of P110 steel under high pressure is maintained in the range of 200 ∼ 375 Ωcm2, while that under atmospheric pressure is maintained in the range of 20 ∼ 160 Ωcm2, indicating that the corrosion products on P110 steel under high pressure is denser, which improves the corrosion resistance of P110 steel to a certain extent.
Originality/value
The WBE applied in high temperature and pressure environment is in blank. This work designed and prepared a WBE of P110 steel for high temperature and pressure environment, and the corrosion mechanism of P110 steel was revealed by using the designed WBE.
Keywords
Acknowledgements
This research was financially supported by the National Natural Science Foundation (No. 52174007), Project of Sichuan Department of Science and Technology (No. 2023YFSY0017), Opening Project of Material Corrosion and Protection Key Laboratory of Sichuan (No. 2022CL04) and Research and Innovation Fund for Graduate Students of Southwest Petroleum University (No. 2022KYCX109).
Citation
Xi, Y., Wang, Q., Tan, X., Zhang, X., Dong, L., Song, Y., Liu, L. and Zeng, D. (2023), "Design of P110 steel wire beam electrode for high temperature and pressure environment and application for revealing corrosion mechanism", Anti-Corrosion Methods and Materials, Vol. 70 No. 6, pp. 522-532. https://doi.org/10.1108/ACMM-07-2023-2860
Publisher
:Emerald Publishing Limited
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