The investigation on the bending fatigue properties of Ti-6Al-4V lattice sandwich structures fabricated EB-PBF
文献类型：期刊论文
| 作者 | Han, Y.1; Su, S. X.1; Yang, L.2; Li, S. J.2 |
| 刊名 | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| 出版日期 | 2024-11-01 |
| 卷号 | 33页码:3163-3173 |
| 关键词 | Ti-6Al-4V Electron beam powder bed fusion Lattice sandwich structures Bending fatigue |
| ISSN号 | 2238-7854 |
| DOI | 10.1016/j.jmrt.2024.10.023 |
| 通讯作者 | Li, S. J.(shjli@imr.ac.cn) |
| 英文摘要 | In this study, lattice sandwich structures of Ti-6Al-4V alloy with simple cubic (SC) and rhombic dodecahedron (RD) unit cells were prepared by electron beam powder bed fusion (EB-PBF) technique. Through a combination of finite element simulation and experimental investigation, the effect of lattice cell shape and heat treatment on the bending fatigue performance of these lattice sandwich structures was studied. The results show that the underlying fatigue mechanism of the RD lattice sandwich structure is primarily dominated by cyclic ratcheting of the lattice. In contrast, for the SC lattice sandwich structure, the fatigue mechanism involves an interaction of cyclic ratcheting and fatigue crack initiation and propagation of the lattice. During the cyclic deformation process, the struts of the lattice unit cells in the SC lattice sandwich structure mainly undergo buckling deformation. Under the same bending deformation strain, the struts experience much higher stress in the SC lattice sandwich structure, making them more susceptible to crack initiation and resulting in a quick fatigue failure. Therefore, the fatigue performance of the RD lattice sandwich structure is significantly superior to that of the SC lattice sandwich structure. Heat treatment result in the enhanced plasticity of parent materials of the lattice sandwich structure, leading to improved resistance to cyclic strain accumulation during fatigue processes and an increase in fatigue strength. |
| 资助项目 | National Key Research and Development Program of China[2021YFB3700502] ; National Natural Science Foundation of China[U2241245] ; National Natural Science Foundation of China[52321001] ; CAS Interdisciplinary Innovation Team Project of China[JCTD-2020-10] ; Opening project of National Key Laboratory of Shock Wave and Detonation Physics[2022JCJQLB05702] ; Aeronautical Science Foundation of China[2022Z053092001] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001332079100001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China ; National Natural Science Foundation of China ; CAS Interdisciplinary Innovation Team Project of China ; Opening project of National Key Laboratory of Shock Wave and Detonation Physics ; Aeronautical Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, S. J. |
| 作者单位 | 1.Shenyang Univ Technol, Sch Elect Engn, Shenyang 110870, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Han, Y.,Su, S. X.,Yang, L.,et al. The investigation on the bending fatigue properties of Ti-6Al-4V lattice sandwich structures fabricated EB-PBF[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,33:3163-3173. |
| APA | Han, Y.,Su, S. X.,Yang, L.,&Li, S. J..(2024).The investigation on the bending fatigue properties of Ti-6Al-4V lattice sandwich structures fabricated EB-PBF.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,33,3163-3173. |
| MLA | Han, Y.,et al."The investigation on the bending fatigue properties of Ti-6Al-4V lattice sandwich structures fabricated EB-PBF".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 33(2024):3163-3173. |
入库方式： OAI收割
来源：金属研究所
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