Finite Element Prediction of Residual Stress in Rhombic Dodecahedron Ti-6Al-4V Titanium Alloy Additively Manufactured by Electron Beam Melting

doi:10.1007/s40195-022-01446-y

IMR OpenIR

	Finite Element Prediction of Residual Stress in Rhombic Dodecahedron Ti-6Al-4V Titanium Alloy Additively Manufactured by Electron Beam Melting
	Zhang, Shangzhou 1; Wang, Yuankang 1; Zhou, Bing 2; Meng, Fanchao 1; Zhang, Hua 1; Li, Shujun 3; Hu, Qingmiao 3; Zhou, Li 2
通讯作者	Zhang, Shangzhou(szzhang@ytu.edu.cn) ; Zhou, Li(lizhou@ytu.edu.cn)
	2022-08-25
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
页码	13
摘要	In this work, a three-dimensional nonlinear transient thermo-mechanically coupled finite element model (FEM) is established to investigate the variation in temperature and stress fields during electron beam melting (EBM) of rhombic dodecahedron Ti-6Al-4V alloy. The influence of the processing parameters on the temperature and residual stress evolutions was predicted and verified against existing literature data. The calculated results indicate that the interlayer cooling time has very little effect on both the temperature and stress evolutions, indicating that the interlayer cooling time can be set up as short as possible to reduce manufacturing time. It is presented that the residual stress of the intersection is higher than that of non-intersection. With increasing preheating temperature, the residual stress decreases continuously, which is about 20%-30% for every 50 degrees C rise in temperature. The temperature and stress fields repeated every four layers with the complex periodic scanning strategy. Both x and y-component residual stresses are tensile stresses, while z-component stress is weak compressive or tensile stress in typical paths. It is proposed that the interlayer cooling is necessary to obtain a rhombic dodecahedron with low residual stress. These results can bring insights into the understanding of the residual stress during EBM.
关键词	Electron beam melting Ti-6Al-4V Rhombic dodecahedron Residual stress Finite element analysis Parametric study
资助者	Natural Science Foundation of Shandong Province, China
DOI	10.1007/s40195-022-01446-y
收录类别	SCI
语种	英语
资助项目	Natural Science Foundation of Shandong Province, China[ZR2019MEM012]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000844470000001
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174558
专题	中国科学院金属研究所
通讯作者	Zhang, Shangzhou; Zhou, Li
作者单位	1.Yantai Univ, Inst Adv Studies Precis Mat, Yantai 264005, Peoples R China 2.Yantai Univ, Sch Electromech & Automot Engn, Yantai 264005, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Shangzhou,Wang, Yuankang,Zhou, Bing,et al. Finite Element Prediction of Residual Stress in Rhombic Dodecahedron Ti-6Al-4V Titanium Alloy Additively Manufactured by Electron Beam Melting[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2022:13.
APA	Zhang, Shangzhou.,Wang, Yuankang.,Zhou, Bing.,Meng, Fanchao.,Zhang, Hua.,...&Zhou, Li.(2022).Finite Element Prediction of Residual Stress in Rhombic Dodecahedron Ti-6Al-4V Titanium Alloy Additively Manufactured by Electron Beam Melting.ACTA METALLURGICA SINICA-ENGLISH LETTERS,13.
MLA	Zhang, Shangzhou,et al."Finite Element Prediction of Residual Stress in Rhombic Dodecahedron Ti-6Al-4V Titanium Alloy Additively Manufactured by Electron Beam Melting".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2022):13.