The cyclic-high temperature oxidation behavior of Fe-20Cr-4Al-S (748ppm) alloys with small amounts of yttrium at 1273K

The cyclic-high temperature oxidation behavior of Fe-20Cr-4Al-S (748ppm) alloys with small amounts of yttrium at 1273K

The cyclic-high temperature oxidation behavior of Fe-20Cr-4Al-S (748ppmS: A), Fe-20Cr-4Al (702ppmS, 30ppmY: B), Fe-20Cr-4Al (645ppmS, 30ppmY: C) and Fe-20Cr-4Al (73ppmS, 1700ppmY: D) alloys was studied in oxygen at 1273K during 5cycles (1cycle=18.0ks) by mass change measurements, macro-morphology of...

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Veröffentlicht in:Journal of Advanced Science 2002/07/31, Vol.14(1-2), pp.51-52
Hauptverfasser: AMANO, Tadaaki, WAKABAYASHI, Tsuyoshi, MORI, Yumiko, BIRUKAWA, Sumiko, ISOBE, Hisao
Format: Artikel
Sprache:eng
Schlagworte:
Cyclic-oxidation
Fe-20Cr-4Al
Oxide adherence
Sulfur
Yttrium
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Zusammenfassung:The cyclic-high temperature oxidation behavior of Fe-20Cr-4Al-S (748ppmS: A), Fe-20Cr-4Al (702ppmS, 30ppmY: B), Fe-20Cr-4Al (645ppmS, 30ppmY: C) and Fe-20Cr-4Al (73ppmS, 1700ppmY: D) alloys was studied in oxygen at 1273K during 5cycles (1cycle=18.0ks) by mass change measurements, macro-morphology of oxidized surface of the alloy, X-ray diffraction and scanning electron microscopy. Mass changes of all the alloys increased with increasing number of cycles. Cyclic-high temperature oxidation resistance of the C and D alloys increased markedly as compared with the A and B alloys.
ISSN:0915-5651
1881-3917
DOI:10.2978/jsas.14.51