Abstract
Semiconductor properties of the passive films formed on 316L and 2205 stainless steel were studied by Electrochemical Impedance Spectroscopy (EIS) in the high-temperature acetic acid. The results showed that the corrosion resistance of 2205 was higher than that of 316L, and the passive films formed on 316L and 2205 stainless steel showed p-type and n-type semiconductor behavior, respectively. Destruction and self-repairing of passive films were studied by using the constant current polarization method. The results showed that for 316L, the self-repairing process would occur when the destruction was lower than the critical extent or it would not do; for 2205, the self-repairing process only happened in a short time when the destruction was in the same extent as 316L.
| Original language | English |
|---|---|
| Pages (from-to) | 2239-2246 |
| Number of pages | 8 |
| Journal | Chinese Science Bulletin |
| Volume | 54 |
| Issue number | 13 |
| DOIs | |
| State | Published - Jul 2009 |
| Externally published | Yes |
Keywords
- Acetic acid
- Corrosion
- Semiconductor
- Stainless steel
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