Synergistic Effect of Carbamide and Sulfate Reducing Bacteria on Corrosion Behavior of Carbon Steel in Soil-Reference-Cited by-同舟云学术

Synergistic Effect of Carbamide and Sulfate Reducing Bacteria on Corrosion Behavior of Carbon Steel in Soil

Published:2018-08-01 Issue: Volume:2018 Page:1-14
ISSN:1687-9325
Container-title:International Journal of Corrosion
language:en
Short-container-title:International Journal of Corrosion

Author:

Li Ximing¹^ORCID,Sun Cheng²

Affiliation:

1. Chemical and Biomolecular Engineering, The University of Akron, Akron, OH 44325, USA

2. State Key Laboratory for Corrosion and Protection, Institute of Metals Research, Chinese Academy of Sciences, Shenyang 110016, China

Abstract

Synergistic effect of carbamide and sulfate reducing bacteria (SRB) on corrosion behavior of carbon steel was studied in soils with moisture of 20% and 30%, by soil properties measurement, weight loss, polarization curve, and electrochemical impedance spectroscopy. The results show that carbamide decreased the soil redox potential and increased soil pH. In soil without SRB, carbamide made corrosion potential of Q235 steel much more positive and then inhibited corrosion. Meanwhile, in soil with SRB, 0.5 wt% carbamide restrained SRB growth and inhibited biocorrosion of Q235 steel. Corrosion rate of carbon steel decreased in soil with 30% moisture compared with that with 20% moisture.

Publisher

Hindawi Limited

Subject

Process Chemistry and Technology,General Materials Science

Link

http://downloads.hindawi.com/journals/ijc/2018/7491501.pdf

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