Cyclic oxidation of Fe-20Cr-4Al alloys with small amounts of sulfur at 1473K

Toshiki WATANABE; Tomoki OHTANI; Masashi UYAMA; Tatsuya MATSUZAWA; Naoto OHYAM; Tadaaki AMANO

doi:10.2978/jsas.9.155

Toshiki WATANABE, Tomoki OHTANI, Masashi UYAMA, Tatsuya MATSUZAWA, Naoto OHYAM, Tadaaki AMANO

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Keywords: Sulfur, Fe-20Cr-4Al, Cyclic oxidation, Oxide adherence

JOURNAL FREE ACCESS

1997 Volume 9 Issue 1-2 Pages 155

DOI https://doi.org/10.2978/jsas.9.155

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Abstract

Cyclic oxidation of Fe-20Cr-4Al alloys with small amounts of sulfur contained was studied up to 5 cycles (1 cycle=18.0ks) at 1473K in oxygen. Adherence of oxide scales on Fe-20Cr-4Al-(3, 104 and 171ppm) S alloys was improved by sulfur. On the other hand, oxide scales on Fe-20Cr-4Al-(35 and 53ppm) S alloys spalled markedly after 1-3 cycles, and amounts of spalled oxide of the alloys decreased after 4-5 cycles.

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