Heat and mass transfer in laser dissimilar welding of stainless steel and nickel

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

	Heat and mass transfer in laser dissimilar welding of stainless steel and nickel
	Hu YW(胡耀武); He XL(何秀丽); Yu G(虞钢); Ge ZF(葛志福); Zheng CY(郑彩云); Ning WJ(宁伟健); He, XL
刊名	APPLIED SURFACE SCIENCE
	2012-05-15
通讯作者邮箱	xlhe@imech.ac.cn
卷号	258 期号:15 页码:5914-5922
关键词	Laser dissimilar welding Heat transfer Mass transfer Fluid flow Metal Composition Change Surface-Active Element Pool Development Phase-Change Molten Pool Marangoni Flow Transport Solidification Convection Momentum
ISSN号	0169-4332
通讯作者	He, XL ; Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China.
产权排序	[Hu, Yaowu;He, Xiuli; Yu, Gang; Ge, Zhifu; Zheng, Caiyun; Ning, Weijian] Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China
中文摘要	Laser spot welding of stainless steel-nickel dissimilar couple has been studied experimentally and numerically. A three-dimensional heat and mass transfer model is used to simulate the welding process, based on the solution of the equations of mass, momentum, energy conservation and solute transport in weld pool. The calculated fusion zone geometry and element distributions are in good agreement with the corresponding experimental results. The role of fluid flow on temperature field and its evolution is analyzed by comparing two cases with and without considering convection. Temperature fields far away from the weld pool are quite similar, but exhibit large difference close to the heat source. During the early stage after formation of weld pool, the distribution of element Fe in weld pool is non-uniform, due to insufficient time for mixing. The speed for mass transport is the highest during the initial stage of weld pool formation and it decreases with time. Both heat and mass transport are significantly influenced by convection during laser spot welding of stainless steel and nickel.
学科主题	制造工艺力学
分类号	一类
收录类别	SCI ; EI
资助信息	The research was sponsored by National Natural Science of China (grant no. 10972222 and 10832011).
原文出处	http://dx.doi.org/10.1016/j.apsusc.2012.02.143
语种	英语
WOS记录号	WOS:000302135700064
公开日期	2013-01-18
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/46620]
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
推荐引用方式 GB/T 7714	Hu YW,He XL,Yu G,et al. Heat and mass transfer in laser dissimilar welding of stainless steel and nickel[J]. APPLIED SURFACE SCIENCE,2012,258(15):5914-5922.
APA	胡耀武.,何秀丽.,虞钢.,葛志福.,郑彩云.,...&He, XL.(2012).Heat and mass transfer in laser dissimilar welding of stainless steel and nickel.APPLIED SURFACE SCIENCE,258(15),5914-5922.
MLA	胡耀武,et al."Heat and mass transfer in laser dissimilar welding of stainless steel and nickel".APPLIED SURFACE SCIENCE 258.15(2012):5914-5922.