Utilization of nondestructive electrochemical techniques in characterizing microbiologically influenced corrosion (MIC) of API-5L X65 carbon linepipe steel: Laboratory study

Application of electrochemical impedance spectroscopy to study hydrogen sulphide corrosion of steel and its inhibition: a review

“…This was in good agreement with the results obtained in research [48]. The following EC were used: R s (CPE bio [R bio (CPE dl R ct )]) [46] or R s (CPE bio [R bio W]) [45].…”

“…Decrease of the calculated R ct with time and respective increase of corrosion rate was possibly due to the formation of porous mixed CP layer in the background medium. The presence of such layer was confirmed by phase angle spectra that demonstrated two time constants at the intermediate frequency [45] (Figure 10).…”

“…In-situ EIS was used to study the MIC of API 5L X52 [45,46] and X80 [47] pipeline steel by Desulfovibrio sp. (SRB) isolated from a sour oil well in Louisiana, USA.…”

“…The SRB were cultivated in modified Baar's medium. To model the spectra for abiotic medium, the following ECs were used: R s (CPE f [R f (CPE dl R ct )]) [45] or the simplified Randles EC [46]. Decrease of the calculated R ct with time and respective increase of corrosion rate was possibly due to the formation of porous mixed CP layer in the background medium.…”

Effects of Iron-Oxidizing Bacteria on Carbon Steel in Oilfield Produced Water

“…6a), before 2days, the R ct increased, then decreased with time, indicating that the isolated IOB accelerated the corrosion of specimen. In the presence of IOB, the value of R ct was lower than that of the control specimen, which suggested that IOB enhanced the corrosion of specimen obviously [18]. Capacitance increased in the absence and presence of IOB.…”