Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting

doi:10.1016/j.jmst.2020.01.033

CORC > 金属研究所 > 中国科学院金属研究所

	Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting
	He, Xiaochun 1; Li, Yang 1; Bi, Yongjie 1; Liu, Xiaomei 1; Zhou, Bing 1; Zhang, Shangzhou 1; Li, Shujun 2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2020-05-01
卷号	44 页码:191-200
关键词	Electron beam melting Ti-6Al-4V titanium alloy Porous cubic grids Finite element analysis Temperature field Stress field
ISSN号	1005-0302
DOI	10.1016/j.jmst.2020.01.033
通讯作者	Zhang, Shangzhou(szzhangyt@163.com)
英文摘要	The temperature and stress profiles of porous cubic Ti-6Al-4V titanium alloy grids by additive manufacturing via electron beam melting (EBM) based on finite element (FE) method were investigated. Three-dimensional FE models were developed to simulate the single-layer and five-layer girds under annular and lateral scanning. The results showed that the molten pool temperature in five-layer girds was higher than that in single-layer grids owing to the larger mass and higher heat capacity. More energies accumulated by the longer scanning time for annular path than lateral path led to the higher temperature and steeper temperature gradient. The thermal stress drastically fluctuated during EBM process and the residual stress decreased with the increase of powder layer where the largest stress appeared at the first layer along the build direction. The stress under lateral scanning was slightly larger but relatively more homogeneous distribution than those under annular scanning. The stress distribution showed anisotropy and the maximum Von Mises stress occurred around the central node. The stress profiles were explained by the temperature fields and grids structure. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	Natural Science Foundation of Shandong Province, China[ZR2019MEM012] ; Major Major Scientific and Technological Innovation Program of Shandong Province, China[2019JZZY010325] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC031-02] ; National Natural Science Foundation of China[51871220]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000522863000020
资助机构	Natural Science Foundation of Shandong Province, China ; Major Major Scientific and Technological Innovation Program of Shandong Province, China ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/138085]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhang, Shangzhou
作者单位	1.Yantai Univ, Sch Nucl Equipment & Nucl Engn, Yantai 264005, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	He, Xiaochun,Li, Yang,Bi, Yongjie,et al. Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,44:191-200.
APA	He, Xiaochun.,Li, Yang.,Bi, Yongjie.,Liu, Xiaomei.,Zhou, Bing.,...&Li, Shujun.(2020).Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,44,191-200.
MLA	He, Xiaochun,et al."Finite element analysis of temperature and residual stress profiles of porous cubic Ti-6Al-4V titanium alloy by electron beam melting".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 44(2020):191-200.