Numerical simulation of microstructure evolution in molten pool of nickel-based superalloy during selective laser melting

doi:10.1016/S1003-6326(23)66417-9

IMR OpenIR

	Numerical simulation of microstructure evolution in molten pool of nickel-based superalloy during selective laser melting
	Qiu, Yi 1; Li, Ying-ju 2; Feng, Xiao-hui 2; Zhang, Ang 3; Yang, Yuan-sheng 2
通讯作者	Yang, Yuan-sheng(ysyang@imr.ac.cn)
	2024-02-01
发表期刊	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
ISSN	1003-6326
卷号	34 期号:2 页码:560-575
摘要	The competitive growth and the evolution of grain/dendrite structures of IN718 superalloy in the molten pool during selective laser melting (SLM) were investigated with the finite element method (FEM) coupling the phase -field model (PFM). The thermal evolution was solved by the FEM and then the results were input into the PFM model to simulate the microstructure evolution involving grain nucleation, grain epitaxial growth and grain competition. Based on the analysis of microstructure evolution of the transverse and longitudinal sections of the molten pool, the mechanism of dendrite competitive growth in the SLM process was discussed and the concentration distribution of the solute element Nb in the molten pool was quantitatively calculated. The results show that the dendrite competitive growth is affected by both the temperature gradient and the crystallographic orientation. The unfavorable orientation grain with a high misorientation (>22.5 degrees) will be eliminated by the favorable orientation grain quickly.
关键词	Ni-based superalloys selective laser melting phase-field model grain/dendrite structures evolution competitive growth
资助者	National Science and Technology Major Project, China
DOI	10.1016/S1003-6326(23)66417-9
收录类别	SCI
语种	英语
资助项目	National Science and Technology Major Project, China[Y2019-VII-0011-0151]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:001228004700001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/186391
专题	中国科学院金属研究所
通讯作者	Yang, Yuan-sheng
作者单位	1.Beijing Inst Technol, Sch Mat Sci & Engn, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China
推荐引用方式 GB/T 7714	Qiu, Yi,Li, Ying-ju,Feng, Xiao-hui,et al. Numerical simulation of microstructure evolution in molten pool of nickel-based superalloy during selective laser melting[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2024,34(2):560-575.
APA	Qiu, Yi,Li, Ying-ju,Feng, Xiao-hui,Zhang, Ang,&Yang, Yuan-sheng.(2024).Numerical simulation of microstructure evolution in molten pool of nickel-based superalloy during selective laser melting.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,34(2),560-575.
MLA	Qiu, Yi,et al."Numerical simulation of microstructure evolution in molten pool of nickel-based superalloy during selective laser melting".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 34.2(2024):560-575.