Effects of High Temperature Oxidation on Mechanical Properties of Ti3AlC2
文献类型：期刊论文
| 作者 | Li, Xichao ; Zheng, Lili ; Qian, Yuhai ; Xu, Jingjun ; Li, Meishuan |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2017-06-01 |
| 卷号 | 33期号:6页码:596-602 |
| 关键词 | Ti(3)AIC(2) Oxidation Flexural strength Hardness Bending test Acoustic emission |
| ISSN号 | 1005-0302 |
| 通讯作者 | Li, MS (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China. |
| 中文摘要 | The oxidation tests of Ti3AlC2 were conducted at 1100 and 1200 degrees C in air for 48 and 360 h, respectively, and the effects of high temperature oxidation on the flexural strength and hardness of Ti3AlC2 were investigated. The microstructure, grain size and phase compositions of Ti3AlC2 substrate didn't change after oxidation, hence the oxide removed Ti3AlC2 substrate maintained its initial flexural strength and hardness. However, the flexural strength of oxide retained Ti3AlC2 decreased by about 5%. Acoustic emission monitoring indicated that during the process of three-point bending test, the formed Al2O3 scale on Ti3AlC2 surface fractured firstly in a cleavage manner, then the substrate/oxide interface cracked, and finally the Ti3AlC2 substrate fractured. The mechanical degradation was caused by the preferential formation of cracks in brittle Al2O3 scale as well as at defective and lacunose grain boundaries of the substrate where stress concentration generated. The mechanical degradation was insensitive to oxidation temperature and time in the present conditions. In addition, the surface hardness increased significantly after oxidation due to the formed hard Al2O3 scale on the surface of Ti3AlC2 substrate. (C) 2016 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 学科主题 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [51571205, 51271191] |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78092]  |
| 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 | Li, Xichao,Zheng, Lili,Qian, Yuhai,et al. Effects of High Temperature Oxidation on Mechanical Properties of Ti3AlC2[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2017,33(6):596-602. |
| APA | Li, Xichao,Zheng, Lili,Qian, Yuhai,Xu, Jingjun,&Li, Meishuan.(2017).Effects of High Temperature Oxidation on Mechanical Properties of Ti3AlC2.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,33(6),596-602. |
| MLA | Li, Xichao,et al."Effects of High Temperature Oxidation on Mechanical Properties of Ti3AlC2".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 33.6(2017):596-602. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。