Processing Map and Hot Working Mechanism of As-Cast Ti-42Al-5Mn Alloy
文献类型：期刊论文
| 作者 | Xu, H; Li, XB; Xing, WW; Shu, L; Ma, YC; Liu, K |
| 刊名 | ADVANCED ENGINEERING MATERIALS
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 20期号:6页码:- |
| ISSN号 | 1438-1656 |
| 关键词 | constitutive equation dislocation and twinning intermetallics microstructure processing map |
| DOI | 10.1002/adem.201701059 |
| 英文摘要 | The research is focused on the hot deformation behavior of Ti-42Al-5Mn (at%) ingot produced by vacuum induction melting (VIM) and vacuum arc remelting (VAR). Firstly, the isothermal compression test is performed at the temperatures between 1100 and 1300 degrees C with the strain rates in the range of 0.001-10s(-1). The processing map is plotted on the base of the strain-stress curves, and the constitutive equation is also established by regression analysis based on the experimental results. Secondly, different deformation features in , phase, and lath of lamellae are investigated by electron probe micro analyzer (EPMA) and transmission electron microscope (TEM). The results reveal that, the alloy can be hot worked from 1300 degrees C-10 s(-1) to 1100 degrees C-0.1 s(-1), and the stress exponent and apparent activation energy are calculated to be 2.71 and 597kJmole(-1), respectively. It shows that, during the isothermal compression process, the phase usually has a higher dislocation density than phase, and the lath of lamellae has generated both dislocation glide and deformation twinning. |
| 学科主题 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000435928600022 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/80167]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, H,Li, XB,Xing, WW,et al. Processing Map and Hot Working Mechanism of As-Cast Ti-42Al-5Mn Alloy[J]. ADVANCED ENGINEERING MATERIALS,2018,20(6):-. |
| APA | Xu, H,Li, XB,Xing, WW,Shu, L,Ma, YC,&Liu, K.(2018).Processing Map and Hot Working Mechanism of As-Cast Ti-42Al-5Mn Alloy.ADVANCED ENGINEERING MATERIALS,20(6),-. |
| MLA | Xu, H,et al."Processing Map and Hot Working Mechanism of As-Cast Ti-42Al-5Mn Alloy".ADVANCED ENGINEERING MATERIALS 20.6(2018):-. |
入库方式： OAI收割
来源：金属研究所
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