The oxidation of two ternary Ni-Cu-5 at.%Al alloys in 1 atm of pure O-2 at 800-900 degrees C
文献类型：期刊论文
| 作者 | Y. Niu ; J. H. Xiang ; F. Gesmundo |
| 刊名 | Oxidation of Metals
 |
| 出版日期 | 2003 |
| 卷号 | 60期号:3-4页码:293-313 |
| 关键词 | ternary alloys nickel-copper base oxidation aluminum effect 2-phase binary-alloys internal oxidation external scale oxygen diffusion nickel legierungen solubility transition oxydation |
| ISSN号 | 0030-770X |
| 中文摘要 | The oxidation of a Ni- rich and a Cu- rich single- phase ternary alloy containing about 5 at .% aluminum has been studied at 800 and 900degreesC under 1 atm O-2. The behavior of the Ni- rich alloy is similar to that of a binary Ni - Al alloy with a similar Al content at both temperatures, with formation of an external NiO layer coupled to the internal oxidation of aluminum. The Cu- rich ternary alloy shows a larger tendency to form protective alumina scales, even though its behavior is borderline between protective and non- protective. In fact, at 800degreesC, after an initial stage of fast reaction during which all the alloy components are oxidized, this alloy is able to develop a continuous layer of alumina at the base of the scale which prevents the internal oxidation of aluminum. On the contrary, at 900degreesC the innermost alumina layer undergoes repeated rupturing followed by healing, so that internal oxidation of Al is only partly eliminated. As a result, the corrosion kinetics of the Cu- rich ternary alloy at 900degreesC are much faster than at 800degreesC and very similar to those of pure copper and of Al-dilute binary Cu - Al alloys. Possible reasons for the larger tendency of the Cu-rich alloy to form external alumina scales than the Ni- rich alloy are examined. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35980]  |
| 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 | Y. Niu,J. H. Xiang,F. Gesmundo. The oxidation of two ternary Ni-Cu-5 at.%Al alloys in 1 atm of pure O-2 at 800-900 degrees C[J]. Oxidation of Metals,2003,60(3-4):293-313. |
| APA | Y. Niu,J. H. Xiang,&F. Gesmundo.(2003).The oxidation of two ternary Ni-Cu-5 at.%Al alloys in 1 atm of pure O-2 at 800-900 degrees C.Oxidation of Metals,60(3-4),293-313. |
| MLA | Y. Niu,et al."The oxidation of two ternary Ni-Cu-5 at.%Al alloys in 1 atm of pure O-2 at 800-900 degrees C".Oxidation of Metals 60.3-4(2003):293-313. |
入库方式： OAI收割
来源：金属研究所
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