| Effect of melt superheat treatment on solidification behavior and microstructure of new Ni-Co based superalloy | |
| Cui, Hongyang1,2; Tan, Yi1,2; Bai, Rusheng1,2; Li, Yi1,2; Zhao, Longhai1,2; Zhuang, Xinpeng1,2; Wang, Yilin1,2; Chen, Ziang1,2; Li, Pengting1,2; You, Xiaogang1,2,3; Cui, Chuanyong4 | |
| Corresponding Author | Tan, Yi(lnsolar@dlut.edu.cn) ; You, Xiaogang(youxiaogang1990@163.com) |
| 2021-11-01 | |
| Source Publication | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| ISSN | 2238-7854 |
| Volume | 15Pages:4970-4980 |
| Abstract | A new type of Ni-Co based superalloy was prepared by vacuum induction melting (VIM), and the effects of superheat on element distribution, dendrite segregation, and solidification microstructure refinement of the new Ni-Co based superalloy are revealed. The effect of solidification structure treatment under different conditions was quantitatively studied by differential scanning calorimetry (DSC), scanning electron microscope (SEM), and electron probe micro analyzer (EPMA). The results indicated that the nucleation undercooling increased and the crystallization temperature interval decreased with the rise of the melt temperature; As the superheat temperature rised, the size of the phase was refined; the secondary dendrite arm spacing of the alloy decreased continuously; and the dendritic segregation of the alloy decreased. It was found that the critical temperature of melting energy for the new Ni-Co based superalloy clusters is about 1550 degrees C. The maximum positive segregation element of the new Ni-Co-based superalloy is Ti, and the maximum negative segregation element is W; When the temperature increased from 1450 degrees C to 1600 degrees C, the segregation coefficient of Ti increased from 0.54 to 0.63, and the segregation coefficient of W decreased from 1.9 to 1.5. When the superheat was increased, the atomic cluster size decreases, and the effect of refining the solidification structure of the new Ni-Co-based superalloy is more significant. (C) 2021 The Authors. Published by Elsevier B.V. |
| Keyword | Superheat treatment Dendritic segregation Microstructure refinement New Ni-Co Based superalloy |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Innovation Team Project for Key Fields of Dalian |
| DOI | 10.1016/j.jmrt.2021.10.122 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Development Program of China[2019YFA0705300] ; National Natural Science Foundation of China[91860123] ; National Natural Science Foundation of China[51974057] ; National Natural Science Foundation of China[52004051] ; Innovation Team Project for Key Fields of Dalian[2019RT13] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000719262300001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/167409 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Tan, Yi; You, Xiaogang |
| Affiliation | 1.Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Mat Modificat Laser Ion Electron Beams, Minist Educ, Dalian 116024, Peoples R China 2.Key Lab Energy Beam Met & Adv Mat Preparat Liaoni, Dalian 116024, Peoples R China 3.Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Cui, Hongyang,Tan, Yi,Bai, Rusheng,et al. Effect of melt superheat treatment on solidification behavior and microstructure of new Ni-Co based superalloy[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2021,15:4970-4980. |
| APA | Cui, Hongyang.,Tan, Yi.,Bai, Rusheng.,Li, Yi.,Zhao, Longhai.,...&Cui, Chuanyong.(2021).Effect of melt superheat treatment on solidification behavior and microstructure of new Ni-Co based superalloy.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,15,4970-4980. |
| MLA | Cui, Hongyang,et al."Effect of melt superheat treatment on solidification behavior and microstructure of new Ni-Co based superalloy".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 15(2021):4970-4980. |
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