Impact of gas pressure on particle feature in Fe-based amorphous alloy powders via gas atomization: Simulation and experiment

doi:10.1016/j.jmst.2021.06.075

IMR OpenIR

	Impact of gas pressure on particle feature in Fe-based amorphous alloy powders via gas atomization: Simulation and experiment
	Shi, Yutong 1,2; Lu, Weiyan 1; Sun, Wenhai 1; Zhang, Suode 1; Yang, Baijun 1; Wang, Jianqiang 1
通讯作者	Wang, Jianqiang(jqwang@imr.ac.cn)
	2022-04-10
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	105 页码:203-213
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.
关键词	Gas atomization Fe-based amorphous powder Closed-wake Gas-melt flow Break-up Particle size distribution
资助者	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
收录类别	SCI
语种	英语
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
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000797467000011
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：36[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174273
专题	中国科学院金属研究所
通讯作者	Wang, Jianqiang
作者单位	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
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.