Corrosion behavior of Fe-40Al sheet in N-2-11.2O(2)-7.5CO(2) atmospheres with various SO2 contents at 1273 K
文献类型：期刊论文
| 作者 | F. Q. Lang ; Z. M. Yu ; S. Gedevanishvili ; S. C. Deevi ; S. Hayashi ; T. Narita |
| 刊名 | Intermetallics
 |
| 出版日期 | 2003 |
| 卷号 | 11期号:2页码:135-141 |
| 关键词 | iron aluminides (based on FeAl) corrosion high-temperature corrosion b2 iron aluminides oxidation behavior feal alloys zr |
| ISSN号 | 0966-9795 |
| 中文摘要 | A 200 mum thick Fe-40 at.%Al sheet, produced by powder metallurgy and hot extruding, was corroded at 1273 K for up to 360 ks in N-2-11.2 vol.%O-2-7.4 voI-%CO2 atmospheres containing 100, 500, or 2000 ppmSO(2). The alloy oxidized rapidly at the very initial stage of corrosion, forming sulfides in addition to both theta- and alpha-Al2O3 scales, it was suggested that sutfides may be formed by direct reaction Of SO2 gas molecules with the alloy. Sulfide or dissociated sulfur at the alloy-scale interface may promote exfoliation of the external scale. With further oxidation, the oxide scale consisted solely of alpha-Al2O3, and grows obeying a parabolic rate law. The parabolic rate constants are between 5.5 x 10(-12) and 7.2 x 10(-12) kg(2) m(-4) s(-1), independent Of SO2 concentration. After 360 ks of corrosion the Al content in the alloy sheet remained at about 38 at. %Al, with an almost flat profile across the entire sheet. (C) 2003 Published by Elsevier Science Ltd. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35875]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | F. Q. Lang,Z. M. Yu,S. Gedevanishvili,et al. Corrosion behavior of Fe-40Al sheet in N-2-11.2O(2)-7.5CO(2) atmospheres with various SO2 contents at 1273 K[J]. Intermetallics,2003,11(2):135-141. |
| APA | F. Q. Lang,Z. M. Yu,S. Gedevanishvili,S. C. Deevi,S. Hayashi,&T. Narita.(2003).Corrosion behavior of Fe-40Al sheet in N-2-11.2O(2)-7.5CO(2) atmospheres with various SO2 contents at 1273 K.Intermetallics,11(2),135-141. |
| MLA | F. Q. Lang,et al."Corrosion behavior of Fe-40Al sheet in N-2-11.2O(2)-7.5CO(2) atmospheres with various SO2 contents at 1273 K".Intermetallics 11.2(2003):135-141. |
入库方式： OAI收割
来源：金属研究所
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