Isothermal oxidation behavior of Ti(3)Al-based alloy at 700-1000 degrees C in air
文献类型：期刊论文
| 作者 | Y. H. Qian ; M. S. Li ; B. Lu |
| 刊名 | Transactions of Nonferrous Metals Society of China
 |
| 出版日期 | 2009 |
| 卷号 | 19期号:3页码:525-529 |
| 关键词 | oxidation resistance Ti(3)Al-based intermetallic alloy oxidation kinetics resistance coatings ti3al-nb ti |
| ISSN号 | 1003-6326 |
| 中文摘要 | The isothermal oxidation behavior of a Ti(3)Al-based alloy (Ti-24Al-14Nb-3V-0.5Mo-0.3Si, molar fraction, %) at 700-1000 degrees C in air was investigated. The oxidation kinetics of tested alloy approximately obeys the parabolic law, which shows that the oxidation process is dominated by the diffusion of ions. The oxidation diffusion activity energy is 241.32 kJ/mol. The tested alloy exhibits good oxidation resistance at 700 degrees C. However, when the temperature is higher than 900 degrees C, the oxidation resistance becomes poor. The XRD results reveal that the oxide product consists of a mixture of TiO(2) and Al(2)O(3). Serious crack and spallation of oxide scale occur during cooling procedure after being exposed at 1000 degrees C in air for 16 h. According to the analysis of SEM/EDS and XRD, it is concluded that the Al(2)O(3) oxide forms at the initially transient oxidation stage and most of it keeps in the outer oxide layer during the subsequent oxidation procedure. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/32238]  |
| 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. H. Qian,M. S. Li,B. Lu. Isothermal oxidation behavior of Ti(3)Al-based alloy at 700-1000 degrees C in air[J]. Transactions of Nonferrous Metals Society of China,2009,19(3):525-529. |
| APA | Y. H. Qian,M. S. Li,&B. Lu.(2009).Isothermal oxidation behavior of Ti(3)Al-based alloy at 700-1000 degrees C in air.Transactions of Nonferrous Metals Society of China,19(3),525-529. |
| MLA | Y. H. Qian,et al."Isothermal oxidation behavior of Ti(3)Al-based alloy at 700-1000 degrees C in air".Transactions of Nonferrous Metals Society of China 19.3(2009):525-529. |
入库方式： OAI收割
来源：金属研究所
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