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Stress Corrosion Cracking of X80 Steel in the Presence of Sulfate-reducing Bacteria
T. Q.; Yan Wu, M. C.; Zeng, D. C.; Xu, J.; Sun, C.; Yu, C. K.; Ke, W.
2015
Source PublicationJournal of Materials Science & Technology
ISSN1005-0302
Volume31Issue:4Pages:413-422
AbstractThe systematic laboratory studies on the roles of sulfate-reducing bacteria (SRB) in the stress corrosion cracking (SCC) susceptibility of X80 steel subjected to cathodic potential have been conducted in a nearneutral pH soil solution by slow strain rate tests. The cathodic potential and SRB increase individually the SCC susceptibility of the steel in the soil solution. The positive role of the SRB activities in SCC susceptibility depends on the prolongation of pre-incubation time, and the SCC susceptibility of the steel increases under more negative potentials. What's more, the applied potentials and the presence of SRB work together in promoting the SCC susceptibility of the steel. But, the combined action becomes limited with decreasing cathodic potentials. The relationships between the plasticity loss and the permeable hydrogen concentration were established for the steel in the soil solution, regardless of under open circuit potential or cathodic potentials, in both the sterile and SRB inoculated conditions. The relationships are practically significant for the selection of safe cathodic protection (CP) potentials in the presence of SRB in soil environment. Copyright (C) 2015, The editorial office of Journal of Materials Science & Technology. Published by Elsevier Limited. All rights reserved.
description.department[wu, tangqing ; yan, maocheng ; xu, jin ; sun, cheng ; yu, changkun ; ke, wei] chinese acad sci, inst met res, environm corros ctr, shenyang 110016, peoples r china. [wu, tangqing] xiangtan univ, sch mat sci & engn, xiangtan 411105, peoples r china. [wu, tangqing] xiangtan univ, key lab mat design & preparat technol hunan prov, xiangtan 411105, peoples r china. [zeng, dechun] oil gas storage & transportat co, xinjiang oilfield branch, karamay 834002, peoples r china. ; sun, c (reprint author), chinese acad sci, inst met res, environm corros ctr, shenyang 110016, peoples r china. ; chengsun@imr.ac.cn
KeywordCarbon Steel Microbiologically Influenced Corrosion (Mic) Stress Corrosion Cracking (Scc) Carbon-steel Pipeline Steel Soil Solution Microbiological Corrosion Hydrogen Embrittlement Structural-steels High-strength Low-alloy Behavior Biofilm
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73979
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
T. Q.,Yan Wu, M. C.,Zeng, D. C.,et al. Stress Corrosion Cracking of X80 Steel in the Presence of Sulfate-reducing Bacteria[J]. Journal of Materials Science & Technology,2015,31(4):413-422.
APA T. Q..,Yan Wu, M. C..,Zeng, D. C..,Xu, J..,Sun, C..,...&Ke, W..(2015).Stress Corrosion Cracking of X80 Steel in the Presence of Sulfate-reducing Bacteria.Journal of Materials Science & Technology,31(4),413-422.
MLA T. Q.,et al."Stress Corrosion Cracking of X80 Steel in the Presence of Sulfate-reducing Bacteria".Journal of Materials Science & Technology 31.4(2015):413-422.
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