The corrosion of 316L stainless steel induced by methanocossus mariplaudis through indirect electron transfer in seawater

Ruizhi Hou; Shihang Lu; Shiqiang Chen; Wenwen Dou; Guangzhou Liu

doi:10.1016/j.bioelechem.2022.108310

The corrosion of 316L stainless steel induced by methanocossus mariplaudis through indirect electron transfer in seawater

Bioelectrochemistry. 2023 Feb:149:108310. doi: 10.1016/j.bioelechem.2022.108310. Epub 2022 Oct 20.

Authors

Ruizhi Hou¹, Shihang Lu¹, Shiqiang Chen², Wenwen Dou¹, Guangzhou Liu¹

Affiliations

¹ Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong 266237, China.
² Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong 266237, China. Electronic address: chenshiqiang@sdu.edu.cn.

PMID: 36283192
DOI: 10.1016/j.bioelechem.2022.108310

Abstract

The effect of methanogenic archaea (Methanococcus maripaludis) on corrosion behavior of 316L stainless steel under different concentrations of organic electron donor (acetate) was investigated. The results showed that M. maripaludis can survive by utilizing 316L SS as an alternative energy source. The extracellular electron transfer from 316L SS relies on redox-active substances secreted by M. maripaludis. Corrosion of 316L SS is promoted along with decrease of acetate concentration. M. maripaludis causes severe pitting corrosion of 316L SS in the absence of acetate due to that more redox-active substances are secreted, which has little relationship with the M. maripaludis biofilm.

Keywords: Cyclic voltammetry; Extracellular electron transfer; Methanogenic archaea; Microbiologically influenced corrosion; SEM; Stainless steel.

MeSH terms

Biofilms
Corrosion
Electrons*
Seawater
Stainless Steel*

Substances

Stainless Steel