Transient oxidation behavior of nanocrystalline CoCrAlY coating at 1050℃
文献类型：期刊论文
| 作者 | LIU Guangming1; LI Meishuan1; MA Jinghui2; DU Nan2; ZHOU Yanchun1 |
| 刊名 | 中国有色金属学会会刊：英文版
 |
| 出版日期 | 2007 |
| 卷号 | 17.0期号:003页码:595-599 |
| 关键词 | 氧化反应 相位转换 CoCrAlY合金 合金包覆 钴 铬 铝 钇 |
| ISSN号 | 1003-6326 |
| 其他题名 | Transient oxidation behavior of nanocrystalline CoCrAlY coating at 1050℃ |
| 英文摘要 | Nanocrystalline CoCrA1Y overlay coating was prepared on M38G superalloy by magnetron sputtering deposition. To investigate the oxidation behavior and phase transformation of alumina during oxidation, the oxidation experiments were conducted at 1 050 ℃ for various time in the range of 5-180 min. The phase compositions of the oxide scales were investigated by using glancing angle X-ray diffraction（XRD）. The microstructure analysis of oxide scales was carried out by means of scanning electron microscopy（SEM）. The growth process of metastable alumina at the grain boundaries and transformation to stable alumina were discussed. The results show that at the initial oxidation stage the mixture of δ-Al2O3, γ-Al2O3 and α-Al2O3 is formed on the sample surface rapidly. Especially, δ-Al2O3 and γ-Al2O3 prefer growing at the grain boundaries of CoCrA1Y coating. With increasing oxidation time, δ-Al2O3 and γ-Al2O3 transform to θ-Al2O3, afterwards θ-Al2O3 transforms to α-Al2O3 gradually. After 180 min oxidation, θ-Al2O3 transforms into α-Al2O3 completely. |
| 语种 | 中文 |
| CSCD记录号 | CSCD:2827758 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/148462]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.中国科学院金属研究所 2.School of Materials Science and Engineering, Nanchang Institute of Aeronautical Technology |
| 推荐引用方式 GB/T 7714 | LIU Guangming,LI Meishuan,MA Jinghui,et al. Transient oxidation behavior of nanocrystalline CoCrAlY coating at 1050℃[J]. 中国有色金属学会会刊：英文版,2007,17.0(003):595-599. |
| APA | LIU Guangming,LI Meishuan,MA Jinghui,DU Nan,&ZHOU Yanchun.(2007).Transient oxidation behavior of nanocrystalline CoCrAlY coating at 1050℃.中国有色金属学会会刊：英文版,17.0(003),595-599. |
| MLA | LIU Guangming,et al."Transient oxidation behavior of nanocrystalline CoCrAlY coating at 1050℃".中国有色金属学会会刊：英文版 17.0.003(2007):595-599. |
入库方式： OAI收割
来源：金属研究所
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