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Effect of melt superheat treatment on solidification behavior and microstructure of new Ni-Co based superalloy

文献类型：期刊论文

作者Cui, Hongyang3,4; Tan, Yi3,4; Bai, Rusheng3,4; Li, Yi3,4; Zhao, Longhai3,4; Zhuang, Xinpeng3,4; Wang, Yilin3,4; Chen, Ziang3,4; Li, Pengting3,4; You, Xiaogang2,3,4
刊名JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
出版日期2021-11-01
卷号15页码:4970-4980
关键词Superheat treatment Dendritic segregation Microstructure refinement New Ni-Co Based superalloy
ISSN号2238-7854
DOI10.1016/j.jmrt.2021.10.122
通讯作者Tan, Yi(lnsolar@dlut.edu.cn) ; You, Xiaogang(youxiaogang1990@163.com)
英文摘要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.
资助项目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研究方向Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000719262300001
出版者ELSEVIER
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Innovation Team Project for Key Fields of Dalian
源URL[http://ir.imr.ac.cn/handle/321006/167408]  
专题金属研究所_中国科学院金属研究所
通讯作者Tan, Yi; You, Xiaogang
作者单位1.Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Dalian Univ Technol, Sch Energy & Power Engn, Dalian 116024, Peoples R China
3.Key Lab Energy Beam Met & Adv Mat Preparat Liaoni, Dalian 116024, Peoples R China
4.Dalian Univ Technol, Sch Mat Sci & Engn, Key Lab Mat Modificat Laser Ion Electron Beams, Minist Educ, Dalian 116024, Peoples R China
推荐引用方式
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.

入库方式： OAI收割

来源：金属研究所

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