TEM investigation of the oxide scale of Ti-46.5Al-5Nb at 900 degrees C for 50 h
文献类型：期刊论文
| 作者 | W. Lu ; C. L. Chen ; Y. J. Xi ; C. Y. Guo ; F. H. Wang ; L. L. He |
| 刊名 | Intermetallics
 |
| 出版日期 | 2007 |
| 卷号 | 15期号:5-6页码:824-831 |
| 关键词 | titanium aluminides electron microscopy based on TiAl oxidation transmission gamma-titanium aluminides high-temperature air ti-al alloys oxidation behavior phase microstructure intermetallics si |
| ISSN号 | 0966-9795 |
| 中文摘要 | In the present work, microstructure of oxide scale of Ti-46.5Al-5Nb oxidized for 50 h at 900 degrees C in air was investigated in both plane-viewed and cross-sectional samples using transmission electron microscopy (TEM) and scanning transmission electron microscopy (STEM). In the TiO2 and Al2O3 mixture layer, orientation relationships (OR) between the Al2O3 and TiO2 phases were identified to be [1 (1) over bar 0](Al2O3)//[001](TiO2) and (001)(Al2O3)//(110)(TiO2), however, some misorientation existed at their interface. Besides, Nb enrichment was detected in the TiO2 phase in this layer but no Nb was found in the outer TiO2 layer. Al3Nb phase was identified between the oxide scale and TiAl base. This phase would promote TiAl oxidation protection due to hinder 'x' phase continuous formation. (c) 2006 Elsevier Ltd. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/33742]  |
| 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 | W. Lu,C. L. Chen,Y. J. Xi,et al. TEM investigation of the oxide scale of Ti-46.5Al-5Nb at 900 degrees C for 50 h[J]. Intermetallics,2007,15(5-6):824-831. |
| APA | W. Lu,C. L. Chen,Y. J. Xi,C. Y. Guo,F. H. Wang,&L. L. He.(2007).TEM investigation of the oxide scale of Ti-46.5Al-5Nb at 900 degrees C for 50 h.Intermetallics,15(5-6),824-831. |
| MLA | W. Lu,et al."TEM investigation of the oxide scale of Ti-46.5Al-5Nb at 900 degrees C for 50 h".Intermetallics 15.5-6(2007):824-831. |
入库方式： OAI收割
来源：金属研究所
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