A study on bacteria-assisted cracking of X80 pipeline steel in soil environment
Wu, Tangqing1,2; Sun, Cheng2; Xu, Jin2; Yan, Maocheng2; Yin, Fucheng1; Ke, Wei2
Corresponding AuthorWu, Tangqing(
AbstractIn the paper, bacteria-assisted cracking by sulphate-reducing bacteria (SRB) of X80 pipeline steel in a meadow soil solution was studied under different applied stresses by electrochemical impedance spectroscopy, linear polarisation resistance and scanning electron microscope. The obtained results indicated that the physiological activity of SRB and the applied stresses not only play individual roles in corrosion of the steel, but also had intense synergistic effects in promoting the corrosion process. In the SRB-inoculated soil solution, the number, average length and width of micro-cracks increase to a certain extent. Under the combined actions of SRB and plastic stress, localised corrosion may not only extend to steel matrix but also to lateral direction. The generation processes of bacteria-assisted cracking were discussed in the paper.
KeywordSteel sulphate-reducing bacteria microbiologically induced corrosion (MIC) stress corrosion
Funding OrganizationNational Natural Science Foundation of China ; China Postdoctoral Science Foundation
Indexed BySCI
Funding ProjectNational Natural Science Foundation of China[51601164] ; National Natural Science Foundation of China[51471176] ; China Postdoctoral Science Foundation[2017M622594]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000431534000004
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Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorWu, Tangqing
Affiliation1.Xiangtan Univ, Sch Mat Sci & Engn, Key Lab Mat Design & Preparat Technol Hunan Prov, Xiangtan 411105, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Environm Corros Ctr, Shenyang 110016, Liaoning, Peoples R China
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GB/T 7714
Wu, Tangqing,Sun, Cheng,Xu, Jin,et al. A study on bacteria-assisted cracking of X80 pipeline steel in soil environment[J]. CORROSION ENGINEERING SCIENCE AND TECHNOLOGY,2018,53(4):265-275.
APA Wu, Tangqing,Sun, Cheng,Xu, Jin,Yan, Maocheng,Yin, Fucheng,&Ke, Wei.(2018).A study on bacteria-assisted cracking of X80 pipeline steel in soil environment.CORROSION ENGINEERING SCIENCE AND TECHNOLOGY,53(4),265-275.
MLA Wu, Tangqing,et al."A study on bacteria-assisted cracking of X80 pipeline steel in soil environment".CORROSION ENGINEERING SCIENCE AND TECHNOLOGY 53.4(2018):265-275.
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