Oxidation behaviour of sputter-deposited Ni-Cr-Al micro-crystalline coatings
文献类型：期刊论文
| 作者 | Z. Y. Liu ; W. Gao ; K. L. Dahm ; F. H. Wang |
| 刊名 | Acta Materialia
 |
| 出版日期 | 1998 |
| 卷号 | 46期号:5页码:1691-1700 |
| 关键词 | alloy grain-size high-temperature oxide scales resistance superalloy k38g transport diffusion chromium yttrium |
| ISSN号 | 1359-6454 |
| 中文摘要 | Unbalanced magnetron sputter deposition was used to produce Ni-20Cr-xAl (s = 2, 3, 5 wt%) coatings on the substrates of the same materials. The effects of coating grain size and Al content on oxidation behaviour at 1000 degrees C have been studied. It a as found that the oxidation products were determined by both grain size and Al content. alpha-Al2O3 scales formed on the coatings containing as little as 2.4 wt% Al when the coating grain size was <100 nm. The oxidation behaviour was described using Wagner's theory to include short-circuit diffusion. With the formation of alpha-Al2O3 scale on coatings, the oxidation kinetics did not follow a parabolic law, but could be described with a new model that considered diffusion through both the lattice and grain boundaries. Based on the experimental results, a map showing the relationship between Al content, alloy grain size, and oxidation products has been established. (C) 1998 Acta Metallurgica Inc. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37724]  |
| 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. Y. Liu,W. Gao,K. L. Dahm,et al. Oxidation behaviour of sputter-deposited Ni-Cr-Al micro-crystalline coatings[J]. Acta Materialia,1998,46(5):1691-1700. |
| APA | Z. Y. Liu,W. Gao,K. L. Dahm,&F. H. Wang.(1998).Oxidation behaviour of sputter-deposited Ni-Cr-Al micro-crystalline coatings.Acta Materialia,46(5),1691-1700. |
| MLA | Z. Y. Liu,et al."Oxidation behaviour of sputter-deposited Ni-Cr-Al micro-crystalline coatings".Acta Materialia 46.5(1998):1691-1700. |
入库方式： OAI收割
来源：金属研究所
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