Effect of silicon on oxidation of Ni-15Al alloy
文献类型：期刊论文
| 作者 | Y. Wu ; Y. Niu ; W. T. Wu |
| 刊名 | Transactions of Nonferrous Metals Society of China
 |
| 出版日期 | 2005 |
| 卷号 | 15期号:2页码:296-299 |
| 关键词 | Ni-Si-15Al ternary alloy oxidation al-si alloys ni-cr alloys internal oxidation aluminum alloys external scale ternary alloys temperatures kinetics |
| ISSN号 | 1003-6326 |
| 中文摘要 | The oxidation of binary Ni-Al alloy containing 15% (mole fraction, the same below if not mentioned) At (Ni-15Al), and of a ternary alloy with the same At content but also containing 4% Si (Ni-4Si-15Al) has been studied at 1 000 ° C under 1.0 X 10(5)Pa O-2 to examine the effect of the addition of Si on the oxidation of Ni-15Al, Oxidation of Ni-15Al produces a duplex scale composed of an outer NiO layer and an inner layer riched in Al2O3. On the contrary, Ni-4Si-15Al forms an external alumina layer directly in contact with the alloy presenting only trace of NiO and the Ni-Al spinet. As a result, the kinetics of Ni-15Al shows a fast initial stage followed by two subsequent parabolic stages with decreasing rate constants, while Ni-4Si-15Al presents essentially a single nearly-parabolic behavior with a rate constant similar to that of the final stage of Ni-15Al. Therefore, the addition of 4% Si significantly reduces the oxidation rate during the initial stage by preventing the formation of Ni-riched scales and promoting an earlier development of an exclusive external alumina layer on the alloy surface. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35143]  |
| 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. Wu,Y. Niu,W. T. Wu. Effect of silicon on oxidation of Ni-15Al alloy[J]. Transactions of Nonferrous Metals Society of China,2005,15(2):296-299. |
| APA | Y. Wu,Y. Niu,&W. T. Wu.(2005).Effect of silicon on oxidation of Ni-15Al alloy.Transactions of Nonferrous Metals Society of China,15(2),296-299. |
| MLA | Y. Wu,et al."Effect of silicon on oxidation of Ni-15Al alloy".Transactions of Nonferrous Metals Society of China 15.2(2005):296-299. |
入库方式： OAI收割
来源：金属研究所
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