Abstract
Microalloying effects of sulfur are investigated systematically on the steam oxidation resistance of austenitic steels and ferritic steels. It is found that the presence of S, about 50ppm, in the steels improves remarkably the steam oxidation resistance of both austenitic steels and high Cr ferritic steels. This result indicates that ferritic steels with excellent steam oxidation resistance can be designed and developed by just leaving S at an impurity level in them without detriment to the mechanical strength. However, the S effect is not so remarkable in low Cr ferritic steels as in high Cr ferritic steels. This fact implies that the S effect is related strongly to the stability of Cr2O3 in high temperature steam conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 1029-1034 |
| Number of pages | 6 |
| Journal | Materials Science Forum |
| Volume | 426-432 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2003 Jan 1 |
| Externally published | Yes |
| Event | Thermec 2003 Processing and Manufacturing of Advanced Materials - Madrid, Spain Duration: 2003 Jul 7 → 2003 Jul 11 |
Keywords
- Austenitic Steel
- CrO
- Evaporation
- Ferritic Steel
- Impurity Effect
- Steam Oxidation
- Sulfur
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
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Cite this
Nakai, M., Murata, Y., Morinaga, M., Hashizume, R., & Sawaragi, Y. (2003). Effect of impurity sulfur on the stability of Cr oxides formed on both austenitic and ferritic steels in a high-temperature steam-atmosphere. Materials Science Forum, 426-432(2), 1029-1034. https://doi.org/10.4028/www.scientific.net/msf.426-432.1029