Effect of surface roughness on the development of protective Al2O3 on Fe-10Al (at.%) alloys containing 0-10 at.% Cr
文献类型：期刊论文
| 作者 | Z. G. Zhang ; P. Y. Hou ; F. Gesmundo ; Y. Niu |
| 刊名 | Applied Surface Science
 |
| 出版日期 | 2006 |
| 卷号 | 253期号:2页码:881-888 |
| 关键词 | high temperature oxidation alumina surface roughness nodules third element effect high-temperature oxidation iron-aluminum-alloys al alloys fe-al chromium-alloys grain-size scales resistance growth oxygen |
| ISSN号 | 0169-4332 |
| 中文摘要 | The effect of alloy surface roughness, achieved by different degrees of surface polishing, on the development of protective alumina layer on Fe-10 at.% Al alloys containing 0, 5, and 10 at.% Cr was investigated during oxidation at 1000 degrees C in 0.1 MPa oxygen. For alloys that are not strong Al2O3 formers (Fe-10Al and Fe-5Cr-10Al), the rougher surfaces increased Fe incorporation into the overall surface layer. On the Fe-10Al, more iron oxides were formed in a uniform layer of mixed aluminum- and iron-oxides since the layer was thicker. On the Fe-5Cr-10Al, more iron-rich nodules developed on an otherwise thin Al2O3 Surface layer. These nodules nucleated preferentially along surface scratch marks but not on alloy grain boundaries. For the strong Al2O3-forming Fe-10Cr-10Al alloy, protective alumina surface layers were observed regardless of the surface roughness. These results indicate that the formation of a protective Al2O3 layer on Fe-Cr-Al surfaces is not dictated by Al diffusion to the surface. More cold-worked surfaces caused an enhanced Fe diffusion, hence produced more Fe-rich oxides during the early stage of oxidation. (c) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34732]  |
| 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 | Z. G. Zhang,P. Y. Hou,F. Gesmundo,et al. Effect of surface roughness on the development of protective Al2O3 on Fe-10Al (at.%) alloys containing 0-10 at.% Cr[J]. Applied Surface Science,2006,253(2):881-888. |
| APA | Z. G. Zhang,P. Y. Hou,F. Gesmundo,&Y. Niu.(2006).Effect of surface roughness on the development of protective Al2O3 on Fe-10Al (at.%) alloys containing 0-10 at.% Cr.Applied Surface Science,253(2),881-888. |
| MLA | Z. G. Zhang,et al."Effect of surface roughness on the development of protective Al2O3 on Fe-10Al (at.%) alloys containing 0-10 at.% Cr".Applied Surface Science 253.2(2006):881-888. |
入库方式： OAI收割
来源：金属研究所
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