In situ Investigation of the Heterogeneous Nucleation Sequence in Al-15 Weight Percent Cu Alloy Inoculated by Al-Ti-B
文献类型：期刊论文
| 作者 | Jia, YW; Wang, DH; Fu, YA; Dong, AP; Zhu, GL; Shu, D; Sun, BD |
| 刊名 | METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
 |
| 出版日期 | 2019 |
| 卷号 | 50A期号:4页码:1795—1804 |
| ISSN号 | 1073-5623 |
| 关键词 | CAST GRAIN-SIZE ALUMINUM-ALLOYS GROWTH-RESTRICTION EQUIAXED GRAINS REFINEMENT SOLIDIFICATION MODEL RADIOGRAPHY MECHANISMS POTENCY |
| DOI | 10.1007/s11661-019-05144-w |
| 文献子类 | 期刊论文 |
| 英文摘要 | The sequence of heterogeneous nucleation events is investigated in situ via synchrotron-based X-ray radiography on Al-15 wt pct Cu alloy. In addition to the normal wave-like nucleation, which is predominant ahead of the solidification front when the temperature gradient moves across the field of view, two other types of nucleation are observed: nucleation among the growing grains and nucleation at one site. The nucleation among the growing grains occurs on the less potent TiB2 particles and accounts for similar to 20 pct regardless of the cooling rates. The third type is the nucleation at one site at cooling rates below 8 K/min and gradually weakens with the increasing cooling rate, which is probably due to the agglomeration of inoculant particles. The latter two types of nucleation are believed to be important for increasing the efficiency of nucleant particles. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31667]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China; 3.Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Adv High Temp Mat & Precis Formi, Shanghai 200240, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Jia, YW,Wang, DH,Fu, YA,et al. In situ Investigation of the Heterogeneous Nucleation Sequence in Al-15 Weight Percent Cu Alloy Inoculated by Al-Ti-B[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2019,50A(4):1795—1804. |
| APA | Jia, YW.,Wang, DH.,Fu, YA.,Dong, AP.,Zhu, GL.,...&Sun, BD.(2019).In situ Investigation of the Heterogeneous Nucleation Sequence in Al-15 Weight Percent Cu Alloy Inoculated by Al-Ti-B.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,50A(4),1795—1804. |
| MLA | Jia, YW,et al."In situ Investigation of the Heterogeneous Nucleation Sequence in Al-15 Weight Percent Cu Alloy Inoculated by Al-Ti-B".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 50A.4(2019):1795—1804. |
入库方式： OAI收割
来源：上海应用物理研究所
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