Compressive creep behavior of TiC/AZ91D magnesium-matrix composites with interpenetrating networks
文献类型：期刊论文
| 作者 | Chen, Liqing; Guo, Jinhua; Yu, Baohai; Ma, Zongyi |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2007-03-01 |
| 卷号 | 23期号:2页码:207-212 |
| ISSN号 | 1005-0302 |
| 关键词 | magnesium-matrix composites TiC/AZ91D interpenetrating networks in-situ reactive infiltration creep |
| 通讯作者 | Chen, Liqing(lqchen@mail.neu.edu.cn) |
| 英文摘要 | The 42.1 vol. pct TiC/AZ91D magnesium-matrix composites with interpenetrating networks were fabricated by in-situ reactive infiltration process. The compressive creep behavior of as-synthesized composites was investigated at temperature ranging from 673 to 723 K under loads of 95-108 MPa. For a comparative purpose, the creep behavior of the monolithic matrix alloy AZ91D was also conducted under loads of 15-55 MPa at 548-598 K. The creep mechanisms we're theoretically analyzed based on the power-law relation. The results showed that the creep rates of both TiC/AZ91D composites and AZ91D alloy increase with increasing the temperature and load. The TiC/AZ91D composites possess superior creep resistance as compared with the AZ91D alloy. At deformation temperature below 573 K, the stress exponent n of AZ91D alloy approaches theoretical value of 5, which suggests that the creep process is controlled by dislocation climb. At 598 K, the stress exponent of AZ91D is close to 3, in which viscous non-basal slip deformation plays a key role in the process of creep deformation. However, the case differs from that of AZ91D alloy when the stress exponent n of TiC/AZ91D composites exceeds 9, which shows that there exists threshold stress in the creep process of the composites, similar to other types of composites. The average activation energies for the creep of the AZ91D alloy and TiC/AZ91D composites were calculated to be 144 and 152 kJ/mol, respectively. The existence of threshold stress in the creep process of the composites leads to an increase in activation energy for creep. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| WOS记录号 | WOS:000245602100009 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/91368]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Chen, Liqing |
| 作者单位 | 1.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110004, Peoples R China 2.Chinese Acad Sci, Met Res Inst, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Liqing,Guo, Jinhua,Yu, Baohai,et al. Compressive creep behavior of TiC/AZ91D magnesium-matrix composites with interpenetrating networks[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2007,23(2):207-212. |
| APA | Chen, Liqing,Guo, Jinhua,Yu, Baohai,&Ma, Zongyi.(2007).Compressive creep behavior of TiC/AZ91D magnesium-matrix composites with interpenetrating networks.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,23(2),207-212. |
| MLA | Chen, Liqing,et al."Compressive creep behavior of TiC/AZ91D magnesium-matrix composites with interpenetrating networks".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 23.2(2007):207-212. |
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。