Capillary convection in pulsed - butt welding of miscible dissimilar couple

doi:10.1177/0954406216637086

CORC > 力学研究所 > 中国科学院力学研究所 > 先进制造工艺力学重点实验室

	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.
刊名	PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
	2017-07-01
卷号	231 期号:13 页码:2429-2440
关键词	Laser Welding Dissimilar Marangoni Convection Heat Transfer Weld Pool
ISSN号	0954-4062
DOI	10.1177/0954406216637086
文献子类	Article
英文摘要	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.
分类号	一类
WOS关键词	HEAT-TRANSFER ; TEMPERATURE PROFILE ; SOURCE MODEL ; MOLTEN POOL ; LASER ; METAL ; ALLOY ; ALUMINUM ; STEEL ; FLOW
WOS研究方向	Engineering
语种	英语
WOS记录号	WOS:000404391100006
资助机构	National Natural Science Foundation of China(11272317\|\|11272316)
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/60632]
专题	力学研究所_先进制造工艺力学重点实验室
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.
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.