| Autor: |
Yanliang Tan, Yangting Sun, Longlin Lei, Yuanyuan Liu, Jin Li, Yiming Jiang |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Materials Research Express, Vol 8, Iss 6, p 066524 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2053-1591 |
| DOI: |
10.1088/2053-1591/ac09bc |
| Popis: |
In this study, Sn ^2+ solution simulation method is used to investigate the effect of Sn on pitting corrosion behavior of tin-containing ferritic stainless steel 430LX. It is found that the correlation between E _pit and [Sn ^2+ ] is opposite to the correlation between critical potential temperature (CPT) and [Sn ^2+ ]. After potentiostatic polarization at a specific potential, the correlations become the same. The CPT experiment after a series of potentiostatic steps proves that Sn ^2+ exhibits positive influence only when the pH and potential is within a certain range. All the complicated phenomena can be explained by the under-potential deposition mechanism. SnO _2 passivation film that enhances the corrosion resistance is only produced when under-potential deposition occurs. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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