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Synergistic effects of deposits and sulfate reducing bacteria on the corrosion of carbon steel

Yang, J. ; Wang, Z.B. ; Qiao, Y.X. ; Zheng, Y.G.

Corrosion science, 2022-05, Vol.199, p.110210, Article 110210 [Periódico revisado por pares]

Amsterdam: Elsevier Ltd

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Título:
Synergistic effects of deposits and sulfate reducing bacteria on the corrosion of carbon steel
Autor: Yang, J. ; Wang, Z.B. ; Qiao, Y.X. ; Zheng, Y.G.
Assuntos: Bacterial corrosion ; Carbon steel ; Carbon steels ; Corrosion ; Corrosion effects ; Deposits ; Iron sulfides ; Localized corrosion ; Microbiologically influenced corrosion ; Sulfate reducing bacteria ; Sulfate reduction ; Synergistic effect ; Under-deposit corrosion ; Weight loss measurement
É parte de: Corrosion science, 2022-05, Vol.199, p.110210, Article 110210
Descrição: The synergistic effects of deposits and sulfate reducing bacteria (SRB) on the corrosion of a carbon steel are clarified by purposely designing four groups of experiments. The weight loss combined with electrochemical measurements and the surface profiling determine quantitatively that deposits and SRB contribute synergistically ~75% and ~ 49% to uniform and localized corrosion, respectively. Based on the experimental evidence, the synergism is explained in terms of the promotion effects of SRB on under-deposit corrosion (UDC) due to unevenly distributed iron sulfides produced by SRB and the acceleration effects of deposits on SRB corrosion resulting from UDC-induced accumulation of SRB. •Deposits and SRB are found to synergistically promote corrosion of carbon steel.•The accumulation of SRB in deposits is experimentally proved.•Synergism is ascribed to SRB accumulation in deposits and SRB-produced sulfides.
Editor: Amsterdam: Elsevier Ltd
Idioma: Inglês

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Synergistic effects of deposits and sulfate reducing bacteria on the corrosion of carbon steel

Yang, J. ; Wang, Z.B. ; Qiao, Y.X. ; Zheng, Y.G.

Amsterdam: Elsevier Ltd

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