Stress corrosion cracking behavior of buried oil and gas pipeline steel under the coexistence of magnetic field and sulfate-reducing bacteria

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外文摘要：Magnetic field and microorganisms are important factors influencing the stress corrosion cracking(SCC)of buried oil and gas pipelines.Once SCC occurs in buried pipelines,it will cause serious hazards to the soil environment.The SCC behavior of X80 pipeline steel under the magnetic field and sulfate-reducing bacteria(SRB)environment was investigated by immersion tests,electrochemical tests,and slow strain rate tensile(SSRT)tests.The results showed that the corrosion and SCC sensitivity of X80 steel decreased with increasing the magnetic field strength in the sterile environment.The SCC sensitivity was higher in the biotic environment inoculated with SRB,but it also decreased with increasing magnetic field strength,which was due to the magnetic field reduces microbial activity and promotes the formation of dense film layer.This work provided theoretical guidance on the prevention of SCC in pipeline steel under magnetic field and SRB coexistence.

外文关键词：

Magnetic fieldSulfate-reducing bacteriaFilm layerStress corrosion crackingOil and gas pipelines

作者：

Jian-Yu He、Fei Xie、Dan Wang、Guang-Xin Liu、Ming Wu、Yue Qin

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作者单位：

College of Petroleum Engineering,Liaoning Petrochemical University,Fushun,113001,Liaoning,China

Key Laboratory of Oil and Gas Storage and Transportation Technology in Liaoning Province,Fushun,113001,Liaoning,China

State Key Joint Laboratory of Environment Simulation and Pollution Control,School of Environment,Tsinghua University,Beijing,100084,China

PipeChina West East Gas Pipeline Company,Shanghai 200120,China

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基金：

国家自然科学基金Natural Science Foundation of Liaoning Province

项目编号：

522740622022-MS-362

出版年：

2024

DOI：

10.1016/j.petsci.2023.10.013

石油科学(英文版)

中国石油大学（北京）

石油科学(英文版)

影响因子：0.88

ISSN：1672-5107

年,卷(期)：2024.21(2)

参考文献量2