Rate of coke formation of centrifugally cast austenitic chromia-forming and alumina-forming alloys in coking conditions
| Autor: | Lizeth Ortiz, Benjamin C. Church |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Austenite
Materials science 020209 energy General Chemical Engineering Kinetics Alloy Metallurgy 02 engineering and technology General Chemistry Coke engineering.material 021001 nanoscience & nanotechnology Chromia Corrosion Atmosphere 0202 electrical engineering electronic engineering information engineering engineering General Materials Science 0210 nano-technology |
| Zdroj: | Corrosion Science. 190:109637 |
| ISSN: | 0010-938X |
| DOI: | 10.1016/j.corsci.2021.109637 |
| Popis: | The coking kinetics and the long-term coking performance of an alumina-forming alloy against a traditional chromia-forming alloy was studied in a hydrogen-ethane coking atmosphere. After 1000 h of exposure, the alumina-forming alloy had 91% less mass gained compared to that of the chromia-forming alloy. Additionally, microstructural analysis showed that the carburisation attack in the chromia-forming alloy was more severe, especially at a higher temperature and at a higher exposure time. Results indicate that a better performance in coking conditions can be attained when implementing alumina-forming alloys. |
| Databáze: | OpenAIRE |
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