Shi, X., Zhang, Y., Zhang, R. et al. npj Mater Degrad 9, 75 (2025)
Highlights:
- Biocides are widely used to mitigate microbiologically influenced corrosion (MIC) in oil and gas fields.
- Improper biocide dosing may result in changes to the MIC.
- This study investigated corrosion behaviour of biofilm-forming Pseudomonas stutzerion X70 pipeline steel under sublethal concentrations of tetrakis(hydroxymethyl) phosphonium sulfate (THPS).
- THPS accelerated corrosion of X70 steel in the presence of stutzeri, compared to THPS-free conditions.
- While THPS inhibited the growth of planktonic cells, it promoted biofilm formation on the X70 steel surface.
- The data suggests that the acceleration of corrosion could be attributed to metabolic alterations in stutzeri, potentially enhancing electron transfer between bacterial cells and the steel surface.






