The potentiodynamic polarization results demonstrated that the corrosion current density ( i corr value) of the biomineralized steel surface was 0.38 μA cm −2, which was less than one-tenth that of the blank steel in a sterile medium (4.86 μA cm −2) after 14 days. The results showed that Shewanella putrefaciens used the cell walls as the nucleation sites to induce the formation of a protective biomineralized layers which contained calcite and extracellular polymeric substances on the steel surface. Microbiologically influenced corrosion inhibition (MICI) of Q235 carbon steel by biomineralization was investigated via a combination of surface analysis, electrochemistry, and scanning electrochemical microscopy (SECM).
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November 2023
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