| Impact of gas pressure on particle feature in Fe-based amorphous alloy powders via gas atomization: Simulation and experiment | |
| Shi, Yutong1,2; Lu, Weiyan1; Sun, Wenhai1; Zhang, Suode1; Yang, Baijun1; Wang, Jianqiang1 | |
| Corresponding Author | Wang, Jianqiang(jqwang@imr.ac.cn) |
| 2022-04-10 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 105Pages:203-213 |
| Abstract | 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. |
| Keyword | Gas atomization Fe-based amorphous powder Closed-wake Gas-melt flow Break-up Particle size distribution |
| Funding Organization | National Key Research and Development Program of China ; Key Research & Development Plan of Jiangxi Province ; National Natural Science Foundation of China |
| DOI | 10.1016/j.jmst.2021.06.075 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000797467000011 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174273 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Wang, Jianqiang |
| Affiliation | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| Recommended Citation 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. |
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