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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.
Source PublicationPROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
2017-07-01
Volume231Issue:13Pages:2429-2440
ISSN0954-4062
AbstractPulsed 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.
KeywordLaser Welding Dissimilar Marangoni Convection Heat Transfer Weld Pool
DOI10.1177/0954406216637086
Indexed BySCI ; EI
Language英语
WOS IDWOS:000404391100006
WOS KeywordHEAT-TRANSFER ; TEMPERATURE PROFILE ; SOURCE MODEL ; MOLTEN POOL ; LASER ; METAL ; ALLOY ; ALUMINUM ; STEEL ; FLOW
WOS Research AreaEngineering
WOS SubjectEngineering, Mechanical
Funding OrganizationNational Natural Science Foundation of China(11272317||11272316)
DepartmentMAM激光智能制造工艺力学
Classification一类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/60632
Collection先进制造工艺力学重点实验室
Corresponding AuthorHe, 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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