Journal
FRONTIERS IN MICROBIOLOGY
Volume 14, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fmicb.2023.1127858
Keywords
X65 steel; Alcaligenes sp; proteoglycan; corrosion inhibition; biofilm
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In this study, the impact of Alcaligenes sp. on the corrosion process of X65 steel was investigated using non-targeted metabolomics techniques. The results revealed that the organic acids produced by Alcaligenes sp. accelerated the early-stage corrosion of X65 steel, while promoting the deposition of stable corrosion products and minerals in the middle and late stages. Additionally, the presence of proteoglycans and corrosion inhibiting substances on the metal surface enhanced the film's stability, effectively inhibiting the corrosion of X65 steel.
In this paper, the effect of Alcaligenes sp. on the corrosion process of X65 steel was investigated by using non-targeted metabolomics techniques for comprehensive characterization of metabolites, combined with surface analysis techniques and electrochemical testing. The results showed that the organic acids produced by Alcaligenes sp. accelerated the corrosion process of X65 steel in the early stage, and the presence of Alcaligenes sp. promoted the deposition of stable corrosion products and minerals in the middle and late stages. In addition, proteoglycans and corrosion inhibiting substances were enriched on the metal surface, which enhanced the stability of the film. The combined effect of multiple factors makes the mixed film of biofilm and corrosion products more dense and complete, which effectively inhibits the corrosion of X65 steel.
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