Cumulative effects of powder beds and melted areas on pore defects in electron beam powder bed fusion of tungsten

doi:10.1016/j.powtec.2024.119971

IMR OpenIR

	Cumulative effects of powder beds and melted areas on pore defects in electron beam powder bed fusion of tungsten
	Wang, Ju 1; Li, Meng 1; Zhang, Huarong 2; Liu, Zhe 3; Li, Xiaodan 3; Yao, Dengzhi 1,4; Wu, Yuhang 1; Wu, Qiong 1; An, Xizhong 1; Li, Shujun 5; Wang, Jian 4; Zhang, Xing 5
通讯作者	An, Xizhong(anxz@mail.neu.edu.cn)
	2024-07-01
发表期刊	POWDER TECHNOLOGY
ISSN	0032-5910
卷号	443 页码:15
摘要	In this article, meso-scale simulations and modeling on the multi -layer spreading and melting of tungsten through electron beam powder bed fusion (EB-PBF) were conducted by a three-dimensional discrete element method coupled computational fluid dynamics approach. The recurring pore defects at the edge were explored, and the cooperative effects of spreading/melting parameters on the edge pores were analyzed. On this basis, the mechanism of edge pore formation was revealed, and the occurrence frequency and edge pore size were quantified. Results show that in the multi -layer printing process, the presence of concavities will cause periodic edge pores at the end of the melted area. Increasing melting power and decreasing melting velocity will reduce the occurrence frequency and increase the average size of edge pores, while high spreading velocity and reverse direction can enlarge the total area and average size of the edge pores. The obtained highlighted results are not only of theoretical significance, but also of practical value for parametric setting and optimization in the actual EB-PBF of tungsten.
关键词	Electron beam powder bed fusion of tungsten DEM-CFD simulations Pore defects Cumulative effects Mechanism analysis
资助者	National Key Research and Development Program of the Ministry of Science and Technology ; Open Fund of State Key Laboratory for Advanced Metals and Materials ; Opening Project of National Key Laboratory of Shock Wave and Detonation Physics ; CAS Interdisciplinary Innovation Team Project of China
DOI	10.1016/j.powtec.2024.119971
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of the Ministry of Science and Technology[2017YFB0305603] ; Open Fund of State Key Laboratory for Advanced Metals and Materials[ZX20200148] ; Opening Project of National Key Laboratory of Shock Wave and Detonation Physics[2022JCJQLB05702] ; CAS Interdisciplinary Innovation Team Project of China[JCTD-2020-10]
WOS研究方向	Engineering
WOS类目	Engineering, Chemical
WOS记录号	WOS:001251988600001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/187311
专题	中国科学院金属研究所
通讯作者	An, Xizhong
作者单位	1.Northeastern Univ, Sch Met, Key Lab Ecol Met Multimet Mineral, Minist Educ, Shenyang 110819, Peoples R China 2.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 3.Shenyang Aircraft Ind Grp Co Ltd, Shenyang 110031, Peoples R China 4.Northwest Inst Nonferrous Met Res, State Key Lab Porous Met Mat, Xian 710016, Shanxi, Peoples R China 5.Chinese Acad Sci, Inst Met Res, Shichangxu Adv Mat Innovat Ctr, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Wang, Ju,Li, Meng,Zhang, Huarong,et al. Cumulative effects of powder beds and melted areas on pore defects in electron beam powder bed fusion of tungsten[J]. POWDER TECHNOLOGY,2024,443:15.
APA	Wang, Ju.,Li, Meng.,Zhang, Huarong.,Liu, Zhe.,Li, Xiaodan.,...&Zhang, Xing.(2024).Cumulative effects of powder beds and melted areas on pore defects in electron beam powder bed fusion of tungsten.POWDER TECHNOLOGY,443,15.
MLA	Wang, Ju,et al."Cumulative effects of powder beds and melted areas on pore defects in electron beam powder bed fusion of tungsten".POWDER TECHNOLOGY 443(2024):15.