Cumulative effects of powder beds and melted areas on pore defects in electron beam powder bed fusion of tungsten
文献类型：期刊论文
| 作者 | Wang, Ju1; Li, Meng1; Zhang, Huarong2; Liu, Zhe3; Li, Xiaodan3; Yao, Dengzhi1,4; Wu, Yuhang1; Wu, Qiong1; An, Xizhong1; Li, Shujun5 |
| 刊名 | POWDER TECHNOLOGY
 |
| 出版日期 | 2024-07-01 |
| 卷号 | 443页码:15 |
| 关键词 | Electron beam powder bed fusion of tungsten DEM-CFD simulations Pore defects Cumulative effects Mechanism analysis |
| ISSN号 | 0032-5910 |
| DOI | 10.1016/j.powtec.2024.119971 |
| 通讯作者 | An, Xizhong(anxz@mail.neu.edu.cn) |
| 英文摘要 | 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. |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:001251988600001 |
| 出版者 | ELSEVIER |
| 资助机构 | 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 |
| 源URL |  |
| 专题 | 金属研究所_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. |
入库方式： OAI收割
来源：金属研究所
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