The air oxidation of two-phase Co-Cu alloys at 600-800 degrees C
文献类型：期刊论文
| 作者 | Y. Niu ; J. Song ; F. Gesmundo ; G. Farne ; G. Fu ; C. Zeng |
| 刊名 | Corrosion Science
 |
| 出版日期 | 2000 |
| 卷号 | 42期号:5页码:799-815 |
| 关键词 | cobalt copper two-phase alloys oxidation 2-phase binary-alloys high-temperature oxidation most-reactive component high oxidant pressures possible scaling modes low-oxygen pressures internal oxidation stable oxide cr alloys 700-900-degrees-c |
| ISSN号 | 0010-938X |
| 中文摘要 | The oxidation of three two-phase cobalt-copper alloys containing approximately 25, 50 and 75 wt% Cu has been studied at 600-800 degrees C in air. The scaling kinetics follow only approximately the parabolic rate law, with rate constants increasing with the copper content under constant temperature. All the alloys form composite scales containing complex mixtures of copper and cobalt oxides, where copper concentrates preferentially in the external regions. Beneath the external oxide scales, there is, in most cases, a region where cobalt oxide is mixed with copper metal: for alloys containing up to 50 wt% copper this zone corresponds to internal oxidation of cobalt, while, for the alloy containing 25 wt% copper, it contains a dispersion of isolated copper particles in a cobalt oxide matrix. At variance with the behavior of solid-solution binary alloys, cobalt is not depeleted in the alloy beneath this region in spite of its preferential local oxidation. The peculiar structure of the scales formed on these alloys is interpreted by considering their two-phase nature. (C) 2000 Elsevier Science Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37142]  |
| 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. Song,F. Gesmundo,et al. The air oxidation of two-phase Co-Cu alloys at 600-800 degrees C[J]. Corrosion Science,2000,42(5):799-815. |
| APA | Y. Niu,J. Song,F. Gesmundo,G. Farne,G. Fu,&C. Zeng.(2000).The air oxidation of two-phase Co-Cu alloys at 600-800 degrees C.Corrosion Science,42(5),799-815. |
| MLA | Y. Niu,et al."The air oxidation of two-phase Co-Cu alloys at 600-800 degrees C".Corrosion Science 42.5(2000):799-815. |
入库方式： OAI收割
来源：金属研究所
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