| 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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| 发表期刊 | PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
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| 2017-07-01
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| 卷号 | 231期号:13页码:2429-2440 |
| ISSN | 0954-4062
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| 摘要 | 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. |
| 关键词 | Laser Welding
Dissimilar
Marangoni Convection
Heat Transfer
Weld Pool
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| DOI | 10.1177/0954406216637086
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000404391100006
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| 关键词[WOS] | HEAT-TRANSFER
; TEMPERATURE PROFILE
; SOURCE MODEL
; MOLTEN POOL
; LASER
; METAL
; ALLOY
; ALUMINUM
; STEEL
; FLOW
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| WOS研究方向 | Engineering
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| WOS类目 | Engineering, Mechanical
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| 项目资助者 | National Natural Science Foundation of China(11272317||11272316)
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| 课题组名称 | MAM激光智能制造工艺力学
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| 论文分区 | 一类
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| 力学所作者排名 | 1
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/60632
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| 专题 | 先进制造工艺力学实验室
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| 通讯作者 | He, XL; Yu, G (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China. |
推荐引用方式
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.
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| 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.
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| 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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