Improved oxide spallation resistance of microcrystalline Ni-Cr-Al coatings
文献类型：期刊论文
| 作者 | Z. Y. Liu ; W. Gao ; K. L. Dahm ; F. H. Wang |
| 刊名 | Oxidation of Metals
 |
| 出版日期 | 1998 |
| 卷号 | 50期号:1-2页码:51-69 |
| 关键词 | Ni-Cr-Al alloy magnetron-sputter deposition microcrystalline coatings cyclic oxidation scale spallation oxidation resistance temperature transport systems alloys |
| ISSN号 | 0030-770X |
| 中文摘要 | Microcrystalline Ni-20Cr-3Al coatings were deposited on Ni-20Cr-3Al substrates by unbalanced magnetron-sputter deposition. The grain size of the coatings was varied by using different Ar pressures. Cyclic-oxidation testing was performed at 1100 degrees C, It was found that (1) an external alpha-Al2O3 scale formed on coating A (4.7 mu m thick, 50 nm grain size), (2) an external Cr2O3 scale and internal Al2O3 oxide formed on coating B (14 mu m thick, 500 nm grain size); and (3) an outer layer scale of Cr2O3+NiCr2O4 and interior laver of Al2O3 formed on the as-cast alloy. Extensive spallation of the Cr2O3+NiCr2O4 scale took place on the as-cast alloy, but no obvious spallation occurred on the two coatings. Improvement of the spallation resistance of the scale is explained by effective diffusional creep of the coatings and the micropegging effect of the inward-grown oxides. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37723]  |
| 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. Improved oxide spallation resistance of microcrystalline Ni-Cr-Al coatings[J]. Oxidation of Metals,1998,50(1-2):51-69. |
| APA | Z. Y. Liu,W. Gao,K. L. Dahm,&F. H. Wang.(1998).Improved oxide spallation resistance of microcrystalline Ni-Cr-Al coatings.Oxidation of Metals,50(1-2),51-69. |
| MLA | Z. Y. Liu,et al."Improved oxide spallation resistance of microcrystalline Ni-Cr-Al coatings".Oxidation of Metals 50.1-2(1998):51-69. |
入库方式： OAI收割
来源：金属研究所
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