The oxidation of a Co-15 wt% yttrium alloy in 1 atm O-2 at 600-800 degrees C
文献类型：期刊论文
| 作者 | Niu, Y; Li, YS; Gesmundo, F; Viani, F |
| 刊名 | INTERMETALLICS
 |
| 出版日期 | 2000-03-01 |
| 卷号 | 8期号:3页码:293-298 |
| 关键词 | rare-earth intermetallics oxidation corrosion |
| ISSN号 | 0966-9795 |
| 通讯作者 | Gesmundo, F() |
| 英文摘要 | The oxidation of a cobalt-based alloy containing 15 wt% yttrium (Y) as well as of pure yttrium has been studied in I arm of pure oxygen at 600-800 degrees C. The alloy always corrodes faster than pure cobalt and follows the parabolic rate law only approximately, forming an external scale of cobalt oxide which in its inner section contains particles of yttrium oxide. Beneath the external scales, a region of internal oxidation of yttrium having a depth much larger than predicted using the known solubility and diffusivity of oxygen in pure cobalt is also present. This anomalous depth is attributed to enhanced oxygen diffusion in the alloy along preferential paths associated with the localized internal oxidation of yttrium. No yttrium depletion is observed in the alloy beneath the front of internal oxidation. The scaling behavior of this alloy is interpreted by taking into account the limited solubility of yttrium in cobalt and the presence of the intermetallic compound Co-17 Y-2. (C) 2000 Elsevier Science Ltd. All rights reserved. |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000085404800015 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.imr.ac.cn/handle/321006/110412]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Gesmundo, F |
| 作者单位 | 1.Univ Genoa, Dipartimento Ingn Chim & Proc, I-16129 Genoa, Italy 2.Inst Corros & Protect Met, State Key Lab Corros, Shenyang 10015, Peoples R China |
| 推荐引用方式 GB/T 7714 | Niu, Y,Li, YS,Gesmundo, F,et al. The oxidation of a Co-15 wt% yttrium alloy in 1 atm O-2 at 600-800 degrees C[J]. INTERMETALLICS,2000,8(3):293-298. |
| APA | Niu, Y,Li, YS,Gesmundo, F,&Viani, F.(2000).The oxidation of a Co-15 wt% yttrium alloy in 1 atm O-2 at 600-800 degrees C.INTERMETALLICS,8(3),293-298. |
| MLA | Niu, Y,et al."The oxidation of a Co-15 wt% yttrium alloy in 1 atm O-2 at 600-800 degrees C".INTERMETALLICS 8.3(2000):293-298. |
入库方式： OAI收割
来源：金属研究所
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