Impact of gas pressure on particle feature in Fe-based amorphous alloy powders via gas atomization: Simulation and experiment
文献类型：期刊论文
| 作者 | Shi, Yutong1,2; Lu, Weiyan2; Sun, Wenhai2; Zhang, Suode2; Yang, Baijun2; Wang, Jianqiang2 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2022-04-10 |
| 卷号 | 105页码:203-213 |
| ISSN号 | 1005-0302 |
| 关键词 | Gas atomization Fe-based amorphous powder Closed-wake Gas-melt flow Break-up Particle size distribution |
| DOI | 10.1016/j.jmst.2021.06.075 |
| 通讯作者 | Wang, Jianqiang(jqwang@imr.ac.cn) |
| 英文摘要 | Gas atomization is now an important production technique for Fe-based amorphous alloy powders used in additive manufacturing, particularly selective laser melting, fabricating large-sized Fe-based bulk metallic glasses. Using the realizable k-epsilon model and discrete phase model theory, the flow dynamics of the gas phase and gas-melt two-phase flow fields in the close-wake condition were investigated to establish the correlation between high gas pressure and powder particle characteristics. The locations of the recirculation zones and the shapes of Mach disks were analyzed in detail for the type of discrete-jet closed-coupled gas atomization nozzle. In the gas-phase flow field, the vortexes, closed to the Mach disk, are found to be a new deceleration method. In the two-phase flow field, the shape of Mach disk changes from "S"-shape to "Z"-shape under the impact of the droplet flow. As predicted by the wave model, with the elevation of gas pressure, the size of the particle is found to gradually decrease and its distribution becomes more concentrated. Simulation results were compliant with the Fe-based amorphous alloy powder preparation tests. This study deepens the understanding of the gas pressure impacting particle features via gas atomization, and contributes to technological applications. (C) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National Key Research and Development Program of China[2016YFB1100204] ; Key Research & Development Plan of Jiangxi Province[20192ACB80001] ; National Natural Science Foundation of China[52171163] ; National Natural Science Foundation of China[51701214] ; National Natural Science Foundation of China[U1908219] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| WOS记录号 | WOS:000797467000011 |
| 资助机构 | National Key Research and Development Program of China ; Key Research & Development Plan of Jiangxi Province ; National Natural Science Foundation of China |
| 源URL | [http://ir.imr.ac.cn/handle/321006/174272]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wang, Jianqiang |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Yutong,Lu, Weiyan,Sun, Wenhai,et al. Impact of gas pressure on particle feature in Fe-based amorphous alloy powders via gas atomization: Simulation and experiment[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,105:203-213. |
| APA | Shi, Yutong,Lu, Weiyan,Sun, Wenhai,Zhang, Suode,Yang, Baijun,&Wang, Jianqiang.(2022).Impact of gas pressure on particle feature in Fe-based amorphous alloy powders via gas atomization: Simulation and experiment.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,105,203-213. |
| MLA | Shi, Yutong,et al."Impact of gas pressure on particle feature in Fe-based amorphous alloy powders via gas atomization: Simulation and experiment".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 105(2022):203-213. |
入库方式： OAI收割
来源：金属研究所
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