Effects of current path on structure and segregation during electroslag remelting process of Inconel 718 alloy with same power input
文献类型：期刊论文
| 作者 | Liu, Fu-bin1; Cao, Hai-bo2; Li, Hua-bing1,3; Jiang, Zhou-hua1,3; Geng, Xin1 |
| 刊名 | JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL
 |
| 出版日期 | 2021-11-24 |
| 关键词 | Electroslag remelting Current path Structure Segregation Inconel 718 alloy Current-conductive mold |
| ISSN号 | 1006-706X |
| DOI | 10.1007/s42243-021-00690-3 |
| 通讯作者 | Li, Hua-bing(huabing_li@163.com) ; Jiang, Zhou-hua(jiangzh@smm.neu.edu.cn) |
| 英文摘要 | Current-conductive mold was recently developed to extend electroslag remelting (ESR) functions to overcome some solidification defects by changing the current path. The macrostructures, microstructures, macrosegregation, and microsegregation of the Inconel 718 ingots produced by the custom laboratory-scale ESR furnace under different current paths (the classical ESR and the single power, and two circuits ESR process with current-conductive mold (ESR-STCCM)) with the same power input were compared and investigated. The results indicate that when the ingot was produced during ESR and ESR-STCCM processes, at the same power input, the pool depth was 104 and 90 mm, respectively. A flatter and shallower molten pool was obtained during ESR-STCCM process. Moreover, compared with a classical ESR ingot, the cooling rate of the centerline of ESR-STCCM ingot was increased from 12.7 to 16.7 K min(-1). The increased cooling rates caused by decreased melting rate and thinner slag skin reduced the growth angle of columnar crystal to the vertical axis and the secondary dendrite arm spacing. Furthermore, the macrosegregation and microsegregation of segregation elements for ESR-STCCM process were dramatically reduced compared with ESR process. The average volume fraction of Laves phase was reduced from 7.39% to 6.14%, and the segregation of Nb in Laves phase was significantly reduced. |
| WOS关键词 | 2-CIRCUIT ESR PROCESS ; SINGLE-POWER ; COOLING RATE ; FLUID-FLOW ; MODELS |
| 资助项目 | National Natural Science Foundation of China[51674070] ; National Natural Science Foundation of China[51874085] ; National Natural Science Foundation of China[U1435205] ; Transformation Project of Major Scientific and Technological Achievements in Shenyang[Z17-5-003] ; ``Innovation & Entrepreneurship Talents'' Introduction Plan of Jiangsu Province |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000721668500001 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China ; Transformation Project of Major Scientific and Technological Achievements in Shenyang ; ``Innovation & Entrepreneurship Talents'' Introduction Plan of Jiangsu Province |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/126490]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Li, Hua-bing; Jiang, Zhou-hua |
| 作者单位 | 1.Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Nucl Energy Safety Technol, Key Lab Neutron & Radiat Safety, Hefei 230031, Anhui, Peoples R China 3.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Fu-bin,Cao, Hai-bo,Li, Hua-bing,et al. Effects of current path on structure and segregation during electroslag remelting process of Inconel 718 alloy with same power input[J]. JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL,2021. |
| APA | Liu, Fu-bin,Cao, Hai-bo,Li, Hua-bing,Jiang, Zhou-hua,&Geng, Xin.(2021).Effects of current path on structure and segregation during electroslag remelting process of Inconel 718 alloy with same power input.JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL. |
| MLA | Liu, Fu-bin,et al."Effects of current path on structure and segregation during electroslag remelting process of Inconel 718 alloy with same power input".JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL (2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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