| Finite Element Prediction of Residual Stress in Rhombic Dodecahedron Ti-6Al-4V Titanium Alloy Additively Manufactured by Electron Beam Melting | |
| Zhang, Shangzhou1; Wang, Yuankang1; Zhou, Bing2; Meng, Fanchao1; Zhang, Hua1; Li, Shujun3; Hu, Qingmiao3; Zhou, Li2 | |
| Corresponding Author | Zhang, Shangzhou(szzhang@ytu.edu.cn) ; Zhou, Li(lizhou@ytu.edu.cn) |
| 2022-08-25 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Pages | 13 |
| Abstract | 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. |
| Keyword | Electron beam melting Ti-6Al-4V Rhombic dodecahedron Residual stress Finite element analysis Parametric study |
| Funding Organization | Natural Science Foundation of Shandong Province, China |
| DOI | 10.1007/s40195-022-01446-y |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural Science Foundation of Shandong Province, China[ZR2019MEM012] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000844470000001 |
| Publisher | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174558 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhang, Shangzhou; Zhou, Li |
| Affiliation | 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 |
| Recommended Citation 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. |
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