Microbiologically influenced corrosion failure analysis of nickel–copper alloy coatings by Aeromonas salmonicida and Delftia acidovorans bacterium isolated from pipe system

Anti microbial corrosion properties of electrospun cellulose acetate nanofibers containing biogenic silver nanoparticles for copper coatings

“…When the R ct value increased the electron, transfer is more difficult which makes the corrosion reaction more difficult to occur, meaning a lower corrosion rate. [30][31][32] CA-Nf shows excellent corrosion resistance can be inferred by the value of R ct in the (653.5 U cm 2 ) which was $18 fold higher than copper surface (R ct 36.07 U cm 2 ) in the biotic experiments. Similar results taken from biotic experiments.…”

“…Same situation like abiotic experiments, R ct value of the Cu inoculated with E. coli was lower than (232.8 U cm 2 ) Cu_CA-Nf inoculated with E. coli (1062 U cm 2 ) indicated that the hydrophobic CA nanobrous coatings could present a superior application prospect in anti-corrosive protection. Furthermore, equivalent circuit, R (QR) (QR) two time constants for abiotic and bacterium inoculated solutions represents the formation of a double layer; an outer layer of the oxide lm/heterogeneous biolm/nanober/nanober/ nanober with AgNps and inner layer of the copper coatings 32 (Fig. S1 †).…”