Work

Study on the corrosion mechanism of X65 steel by manganese-oxidizing bacteria in marine environment

Year: 2024

Type: article

Abstract: The impact of MOB isolated from marine sediments on the corrosion process of X65 steel and the underlying corrosion mechanism are investigated in this work. Results indicate that MOB produces a pH-neutral environment that contributes to Mn 2 + biological oxidation . The manganese oxide produced by MOB can be employed as effective substitute cathode, augmenting both the surface film instability and the electrochemical reactivity of metal. MOB interacts with the steel matrix by rapidly oxidizing the dissolved Fe 2+ of X65 steel to iron oxide when Mn 2+ concentrations are inadequate. There may be multiple factors that contribute to the corrosion of X65 steel.

Source: Corrosion Science

DOI: 10.1016/j.corsci.2024.112669

Authors: Hao Dong, Min Du, Gengxin Li, Jian Wang

Institution: Ocean University of China

Language: English

Topic: Corrosion Behavior and Inhibition

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $4,250

Funder: National Natural Science Foundation of China