The Formation of Humps and Ripples During Selective Laser Melting of 316l Stainless Steel
文献类型：期刊论文
| 作者 | Tang, Pingmei3; Wang, Sen1 ; Duan, Huamei3; Long, Mujun3; Li, Yandong2; Fan, Shuqian1; Chen, Dengfu3
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| 刊名 | JOM
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 72期号:3页码:1128-1137 |
| ISSN号 | 1047-4838 |
| DOI | 10.1007/s11837-019-03987-7 |
| 通讯作者 | Tang, Pingmei(Tpingmei@163.com) |
| 英文摘要 | Humps and ripples are typical surface morphologies obtained in the selective laser melting processes and have an important influence on the surface quality of the fabricated parts. In this study, a three-dimensional powder-scale model is presented to investigate the molten behavior and the resulting hump and ripple formation processes. The results showed that a periodic separation of the molten pool and the associated solidification shrinkage of the molten liquid owing to the surface tension caused the periodic humps on the scan track at a low input energy density. Obtaining a continuous molten pool with an extended duration of the liquidus molten pool and a large flow intensity was conducive to alleviating the humps. Additionally, the molten pool had periodic oscillations due to the recoil pressure that occurred at high input energy densities. The periodic oscillation behavior was responsible for the periodic change of the flow direction of molten liquids at the rear of the molten pool, which caused the periodic formation of ripples during the printing process. Moreover, the surface morphology of the scan track and the dimensions of the molten pool were obtained experimentally. The results were in accordance with the calculated results, which verified the reliability of the model. |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000515408600015 |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/10620]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Tang, Pingmei |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China 2.Yangtze Normal Univ, Key Lab Extraordinary Bond Engn & Adv Mat Technol, Chongqing 408000, Peoples R China 3.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tang, Pingmei,Wang, Sen,Duan, Huamei,et al. The Formation of Humps and Ripples During Selective Laser Melting of 316l Stainless Steel[J]. JOM,2020,72(3):1128-1137. |
| APA | Tang, Pingmei.,Wang, Sen.,Duan, Huamei.,Long, Mujun.,Li, Yandong.,...&Chen, Dengfu.(2020).The Formation of Humps and Ripples During Selective Laser Melting of 316l Stainless Steel.JOM,72(3),1128-1137. |
| MLA | Tang, Pingmei,et al."The Formation of Humps and Ripples During Selective Laser Melting of 316l Stainless Steel".JOM 72.3(2020):1128-1137. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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