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| Effects of Solidification Conditions on the Crystal Selection Behavior of an Al Base Alloy During Directional Solidification | |
| Liu, Jin-lai; Jin, Tao; Luo, Xiong-hong; Feng, Shao-bo; Zhao, Jiu-zhou; Liu, JL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China. | |
| 2016-05-01 | |
| Source Publication | MICROGRAVITY SCIENCE AND TECHNOLOGY
 |
| ISSN | 0938-0108 |
| Volume | 28Issue:2Pages:109-113 |
| Abstract | Al base alloy can be used as model alloy of Ni base single crystal superalloy due to their similarity on microstructure, while its lower melt temperature can match the restricted temperature of furnace working in space. The crystal selection behavior Al base alloy during directional solidification is studied by Bridgman process. With rise of heating temperature and decrease of withdraw rate, the number of grains passed spiral selector reduces. At heating temperature 900 C-a similar to and withdraw rate 2mm/min, an Al base single crystal alloy can be produced. At higher heating temperature more Mg segregates to dendrite stem, which cause smaller liquid volume fraction. At lower withdraw rate less Cu segregate to interdendrite region, which cause reduced constitutional undercooling. These two factors lead to the shrinkage of secondary dendrite arm, thus the efficiency of spiral selector is improved. |
| description.department | [liu, jin-lai ; jin, tao ; luo, xiong-hong ; feng, shao-bo ; zhao, jiu-zhou] chinese acad sci, inst met res, shenyang 110016, peoples r china |
| Keyword | Space Materials Science Single Crystal Superalloy Solidification Defect Dendrite Crystal Selection |
| Subject Area | Engineering ; Thermodynamics ; Mechanics |
| Indexed By | sci |
| Language | 英语 |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/75885 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Liu, JL (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China. |
| Recommended Citation GB/T 7714 | Liu, Jin-lai,Jin, Tao,Luo, Xiong-hong,et al. Effects of Solidification Conditions on the Crystal Selection Behavior of an Al Base Alloy During Directional Solidification[J]. MICROGRAVITY SCIENCE AND TECHNOLOGY,2016,28(2):109-113. |
| APA | Liu, Jin-lai,Jin, Tao,Luo, Xiong-hong,Feng, Shao-bo,Zhao, Jiu-zhou,&Liu, JL .(2016).Effects of Solidification Conditions on the Crystal Selection Behavior of an Al Base Alloy During Directional Solidification.MICROGRAVITY SCIENCE AND TECHNOLOGY,28(2),109-113. |
| MLA | Liu, Jin-lai,et al."Effects of Solidification Conditions on the Crystal Selection Behavior of an Al Base Alloy During Directional Solidification".MICROGRAVITY SCIENCE AND TECHNOLOGY 28.2(2016):109-113. |
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