| Capillary convection in pulsed - butt welding of miscible dissimilar couple | |
Hu YW(胡耀武); He XL(何秀丽) ; Yu G(虞钢); Zhao SS(赵树森); He, XL; Yu, G (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China.
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| Source Publication | PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
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| 2017-07-01 | |
| Volume | 231Issue:13Pages:2429-2440 |
| ISSN | 0954-4062 |
| Abstract | Pulsed laser butt welding of miscible dissimilar couple has been studied numerically based on a three-dimensional heat and mass transfer model. Driving forces of molten metal flow in the case of stainless steel and nickel are compared using dimensional analysis. Thermo-capillary convection due to surface temperature gradient is recognized as the dominating fluid flow. Temperature coefficients of surface tensions are varied to investigate the influences of the convection on heat and mass transfer phenomena in weld pool. The temperature fields at stainless steel and nickel sides are found to be asymmetric and are greatly affected by different Marangoni convections. Concentration of Ni increases as the temperature coefficient of surface tensions changes from negative to positive. The temperature coefficient of surface tension of stainless steel has greater impact on the weld pool configuration and element concentration than that of nickel. The obtained weld pool configurations are found to be dependent on Prandtl number and convection patterns. |
| Keyword | Laser Welding Dissimilar Marangoni Convection Heat Transfer Weld Pool |
| DOI | 10.1177/0954406216637086 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000404391100006 |
| WOS Keyword | HEAT-TRANSFER ; TEMPERATURE PROFILE ; SOURCE MODEL ; MOLTEN POOL ; LASER ; METAL ; ALLOY ; ALUMINUM ; STEEL ; FLOW |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Mechanical |
| Funding Organization | National Natural Science Foundation of China(11272317||11272316) |
| Department | MAM激光智能制造工艺力学 |
| Classification | 一类 |
| Ranking | 1 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/60632 |
| Collection | 先进制造工艺力学实验室 |
| Corresponding Author | He, XL; Yu, G (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China. |
| Recommended Citation GB/T 7714 | Hu YW,He XL,Yu G,et al. Capillary convection in pulsed - butt welding of miscible dissimilar couple[J]. PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE,2017,231,13,:2429-2440. |
| APA | 胡耀武,何秀丽,虞钢,赵树森,He, XL,&Yu, G .(2017).Capillary convection in pulsed - butt welding of miscible dissimilar couple.PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE,231(13),2429-2440. |
| MLA | 胡耀武,et al."Capillary convection in pulsed - butt welding of miscible dissimilar couple".PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE 231.13(2017):2429-2440. |
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| JouArt-2017-074.pdf（1413KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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