| Dendritic branching patterns in platforms of complex Ni-based single crystal castings | |
| Huang, Min1,2; Zhang, Gong1; Wang, Dong1; Ge, Zhi-cheng1; Lu, Yu-zhang1; Jiang, Xiang-wei1; Lou, Lang-hong1 | |
| Corresponding Author | Zhang, Gong(gzhang@imr.ac.cn) |
| 2019-03-01 | |
| Source Publication | CHINA FOUNDRY
 |
| ISSN | 1672-6421 |
| Volume | 16Issue:2Pages:110-117 |
| Abstract | Dendritic branching patterns at variable cross-sections in Ni-based single crystal (SX) castings of different generations were investigated using optical microscope (OM), electro probe microanalyzer (EPMA), differential scanning calorimeter (DSC), Thermo-Cal software and Pro-CAST software. Results show that the dendritic branching patterns are similar in outward platform in SXs of different generations. That is, the primary dendrites (PDs) are introduced into the platform by developing a series of secondary dendrites (SDs) to occupy the bottom of the platform, and the ternary dendrites (TDs) originating from these SDs grow upward to fill up the platform. With the SX generation increasing, the undercooling of melts in the inward platform increases significantly due to the increasing alloying elements and the segregation in the directional solidification (DS) process, and the growth velocity of the dendrite tip increases according to the dynamic model of dendrite growth, which is beneficial for the high-order dendrite development. The stronger dendritic branching ability is shown in the inward platform of the higher generation Ni-based SX. |
| Keyword | dendritic branching patterns platform undercooling |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China |
| DOI | 10.1007/s41230-019-8080-3 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2017YFB0702904] ; National Natural Science Foundation of China[51631008] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000463578500005 |
| Publisher | SPRINGER SINGAPORE PTE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/132819 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Gong |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Huang, Min,Zhang, Gong,Wang, Dong,et al. Dendritic branching patterns in platforms of complex Ni-based single crystal castings[J]. CHINA FOUNDRY,2019,16(2):110-117. |
| APA | Huang, Min.,Zhang, Gong.,Wang, Dong.,Ge, Zhi-cheng.,Lu, Yu-zhang.,...&Lou, Lang-hong.(2019).Dendritic branching patterns in platforms of complex Ni-based single crystal castings.CHINA FOUNDRY,16(2),110-117. |
| MLA | Huang, Min,et al."Dendritic branching patterns in platforms of complex Ni-based single crystal castings".CHINA FOUNDRY 16.2(2019):110-117. |
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