AI Article Synopsis
- * Various electrochemical methods were used to assess the passive film's stability, showing that low oxygen pressures improved resistance while high pressures caused loss of passivation.
- * The findings highlight oxygen's crucial role in the corrosion processes of Super 13Cr stainless steel, providing useful insights for maintaining material integrity in challenging conditions.*
Article Abstract
The passivation and depassivation characteristics of Super 13Cr stainless steel were examined under a range of oxygen partial pressures within a high-temperature (120 ℃) and high-pressure (3 MPa) CO atmosphere. We performed comprehensive electrochemical assessments, encompassing open-circuit potential monitoring, electrochemical impedance spectroscopy, and linear polarization resistance analysis, to evaluate the corrosion resistance and passive film stability. The results demonstrate that the addition of low O partial pressures enhanced the stability of the passive film, while higher O levels led to the loss of the passivation properties of Super 13Cr stainless steel. The study elucidates the pivotal role of oxygen in the corrosion mechanisms affecting Super 13Cr stainless steel, presenting valuable data to enhance for integrity management in severe environmental conditions.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11568281 | PMC |
| http://dx.doi.org/10.1038/s41598-024-77208-w | DOI Listing |
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