Microsegregation of a new Ni-Co-based superalloy prepared by electron beam smelting layered solidification technology and its homogenization behavior
文献类型：期刊论文
| 作者 | Cui, Hongyang2,4; Tan, Yi2,4; Bai, Rusheng2,4; Li, Yi2,4; Zhuang, Xinpeng2,4; Chen, Ziang2,4; You, Xiaogang2,3,4; Li, Pengting2,4; Cui, Chuanyong1 |
| 刊名 | MATERIALS CHARACTERIZATION
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 184页码:10 |
| 关键词 | Electron beam smelting Layered solidification Ni-Co-based superalloy Homogenization behavior |
| ISSN号 | 1044-5803 |
| DOI | 10.1016/j.matchar.2021.111668 |
| 通讯作者 | Tan, Yi(lnsolar@dlut.edu.cn) ; You, Xiaogang() ; Li, Pengting() |
| 英文摘要 | The electron beam smelting layered solidification technology (ER S-LST) is put forward to fabricate a new Ni-Cobased superalloy with less segregation. The microstructures and homogenization behavior of the prepared ingot were studied. The experimental results show that the cross-sectional microstructure of the EBS-LST alloy consists of four typical areas, namely melted zone (MZ), partially fusion zone (PFZ), heat affected zone (HAZ), and bottom layer (BL). During the EBS-LST solidification process, the cooling rate is calculated to be 22.3 k/s according to the well-established model associated with secondary dendrite arm spacing. It can be inferred that the EBS-LST will reduce the solidification time, and thus eliminating the macrosegregation, and weaken the microsegregation of the ingot effectively. The effect of homogenization treatment on the microsegregation and microstructure evolution of the alloy is also studied. The residual segregation index equation during homogenization is constructed for the diffusion behavior of the strongly segregated elements of Ti and W. The diffusion coefficients D-W and D-Ti are calculated as 3.9 x 10(-15) m(2).s(-1) and 5.4 x 10(-15) m(2).s(-1), respectively. |
| 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:000736670400003 |
| 出版者 | ELSEVIER SCIENCE INC |
| 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/321006/173772]  |
| 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; Li, Pengting |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Superalloys Div, 72 Wenhua Rd, Shenyang 110016, 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.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. Microsegregation of a new Ni-Co-based superalloy prepared by electron beam smelting layered solidification technology and its homogenization behavior[J]. MATERIALS CHARACTERIZATION,2022,184:10. |
| APA | Cui, Hongyang.,Tan, Yi.,Bai, Rusheng.,Li, Yi.,Zhuang, Xinpeng.,...&Cui, Chuanyong.(2022).Microsegregation of a new Ni-Co-based superalloy prepared by electron beam smelting layered solidification technology and its homogenization behavior.MATERIALS CHARACTERIZATION,184,10. |
| MLA | Cui, Hongyang,et al."Microsegregation of a new Ni-Co-based superalloy prepared by electron beam smelting layered solidification technology and its homogenization behavior".MATERIALS CHARACTERIZATION 184(2022):10. |
入库方式： OAI收割
来源：金属研究所
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