Effect of Li Content on Properties and Microstructure Evolution of Near-Rapid Solidified 2A97 Al-Li Alloy
文献类型：期刊论文
| 作者 | Tang Yingchun2; Luo Lei2; Luo Liangshun2; Liu Yulin3; Xu Yanjin1; Su Yanqing2; Guo Jingjie2; Fu Hengzhi2 |
| 刊名 | RARE METAL MATERIALS AND ENGINEERING
 |
| 出版日期 | 2019 |
| 卷号 | 48期号:9页码:2737-2744 |
| 关键词 | HOMOGENIZATION PRECIPITATION CORROSION 2A97 Al-Li alloys near-rapid solidification ultra-low-density Al-Li alloys petal-shaped eutectic phase |
| ISSN号 | 1002-185X |
| 其他题名 | Effect of Li Content on Properties and Microstructure Evolution of Near-Rapid Solidified 2A97 Al-Li Alloy |
| 英文摘要 | 2A97 Al-Li alloys with different Li contents were cast by the near-rapid solidification. After that, physical properties analysis was performed by tensile and density tests. Simultaneously, the differential scanning calorimeter (DSC), optical microscope (OM), scanning electron microscope (SEM) and energy dispersive spectrometer (EDS) were used to explore the microstructure evolution of the Al-Li alloy. The results show that the near-rapid solidification and a reasonable heat treatment process can effectively reduce the coarse second phase in the 2A97 Al-Li alloy, which is of great significance for obtaining ultra-low-density Al-Li alloys. With the increase of Li content, the Cu element in the alloy is more inclined to capture more Li element to form the Al2CuLi phase. Accompanied by the relative decrease of Al2Cu phase, the petal-shaped eutectic phase Al2CuMg appears. Besides, the as-cast microstructure of the near-rapid solidified Al-Li alloy transforms from dendritic grains to cellular-like grains, leading to the refinement of the grains. However, as the Li content increases from 1.5 wt% to 3.5 wt%, the effect of the heat treatment decreases sharply, resulting in many coarse eutectic phases remaining in the triangular cross boundaries of the alloy and a reduction in mechanical properties of alloys. |
| 资助项目 | [National Natural Science Foundation of China] ; [National Key Research and Development Program of China] |
| 语种 | 英语 |
| CSCD记录号 | CSCD:6574771 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/141759]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 作者单位 | 1.AVIC Mfg Technol Institute, Beijing 100024, Peoples R China 2.Harbin Institute Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Heilongjiang, Peoples R China 3.中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Tang Yingchun,Luo Lei,Luo Liangshun,et al. Effect of Li Content on Properties and Microstructure Evolution of Near-Rapid Solidified 2A97 Al-Li Alloy[J]. RARE METAL MATERIALS AND ENGINEERING,2019,48(9):2737-2744. |
| APA | Tang Yingchun.,Luo Lei.,Luo Liangshun.,Liu Yulin.,Xu Yanjin.,...&Fu Hengzhi.(2019).Effect of Li Content on Properties and Microstructure Evolution of Near-Rapid Solidified 2A97 Al-Li Alloy.RARE METAL MATERIALS AND ENGINEERING,48(9),2737-2744. |
| MLA | Tang Yingchun,et al."Effect of Li Content on Properties and Microstructure Evolution of Near-Rapid Solidified 2A97 Al-Li Alloy".RARE METAL MATERIALS AND ENGINEERING 48.9(2019):2737-2744. |
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。