High-temperature oxidation behavior of iron-chromium-aluminum alloys
The detailed oxidation behavior of Fe-10Cr alloys, containing aluminum in the range of 2-8% by weight, was studied in pure oxygen at 1 atm pressure. The investigations were performed over the temperature range 950-1050 °C under cyclic conditions (3-hr cycles) in each case. The cyclic-oxidation resis...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Nature
2000
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| Online Access: | http://psasir.upm.edu.my/id/eprint/114384/1/114384.pdf http://psasir.upm.edu.my/id/eprint/114384/ https://link.springer.com/article/10.1023/A:1004682316408?error=cookies_not_supported&code=4e1a4bde-44b6-482b-8aa8-5c7113091ddd |
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| Summary: | The detailed oxidation behavior of Fe-10Cr alloys, containing aluminum in the range of 2-8% by weight, was studied in pure oxygen at 1 atm pressure. The investigations were performed over the temperature range 950-1050 °C under cyclic conditions (3-hr cycles) in each case. The cyclic-oxidation resistance, as measured by the specific weight-gain values, was observed to progressively improve with increasing aluminum content in the alloy. For a particular aluminum content, however, the oxidation resistance decreased with increasing temperature. Following the initial transient-oxidation period, a healing layer of chromia was established on the four alloys. The lower-aluminum alloys (2-4% Al) were observed to end up with Fe-rich oxide scales under the experimental conditions at all temperatures, whereas those containing aluminum in the range of 6-8% formed α-Al2O3 scales. |
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