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Corrosion Inhibition of X80 Steel in Simulated Marine Environment with Marinobacter aquaeolei
Saleem Khan, M.; Xu, Dake; Liu, Dan; Lekbach, Yassir; Yang, Ke; Yang, Chunguang
2019-11-01
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume32Issue:11Pages:1373-1384
AbstractIn the present study, a novel bacterium (Marinobacter aquaeolei) was examined for its corrosion inhibiting behaviour against X80 pipeline steel. Electrochemical results showed that X80 steel immersed in the solution inoculated with M. aquaeolei possessed very high corrosion resistance compared to that of abiotic control. Besides, scanning electron microscopy, confocal laser scanning microscopy and energy-dispersive X-ray spectroscopy were employed to analyse the corrosion product and the biofilm formed on the metal surface. Fourier-transform infrared spectroscopy was also applied to determine the composition of extracellular polymeric substances (EPS). Above results indicated that the corrosion inhibition efficiency observed in biotic medium was very high (91%), proving that M. aquaeolei was an effective inhibitive agent for the corrosion of carbon steel. The inhibition was credited to the formation of bacterial biofilm and the compact protective layer of the secreted EPS. Thus, this study will introduce a natural, environmentally friendly and cost-effective system for the corrosion control of the carbon steel.
KeywordX80 pipeline steel Corrosion inhibition Marinobacter aquaeolei
Indexed BySCI
Language英语
WOS IDWOS:000488930700008
PublisherCHINESE ACAD SCIENCES, INST METAL RESEARCH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80674
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Saleem Khan, M.,Xu, Dake,Liu, Dan,et al. Corrosion Inhibition of X80 Steel in Simulated Marine Environment with Marinobacter aquaeolei[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2019,32(11):1373-1384.
APA Saleem Khan, M.,Xu, Dake,Liu, Dan,Lekbach, Yassir,Yang, Ke,&Yang, Chunguang.(2019).Corrosion Inhibition of X80 Steel in Simulated Marine Environment with Marinobacter aquaeolei.ACTA METALLURGICA SINICA-ENGLISH LETTERS,32(11),1373-1384.
MLA Saleem Khan, M.,et al."Corrosion Inhibition of X80 Steel in Simulated Marine Environment with Marinobacter aquaeolei".ACTA METALLURGICA SINICA-ENGLISH LETTERS 32.11(2019):1373-1384.
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