In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting
文献类型：会议论文
| 作者 | Qian GA(钱桂安) ; Jian,Zhimo; Pan XN(潘向南); Berto,Filippo
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| 出版日期 | 2020 |
| 会议日期 | SEP 05-07, 2018 |
| 会议地点 | Univ Porto, Fac Engn, Porto, PORTUGAL |
| 关键词 | Selective laser melting In-situ SEM Ti-6Al-4V Low cycle fatigue Crack propagation |
| 页码 | 105424 |
| 英文摘要 | In-situ fatigue tests were conducted for exploring the fatigue crack propagation process for Ti-6Al-4V manufactured by selective laser melting (SLM). Fatigue specimens were prepared with two printing orientations by SLM and characterized by scanning electron microscopy (SEM). In-situ fatigue experiments were carried out at 25 degrees C, 200 degrees C, 400 degrees C and 600 degrees C, respectively. Results show that vertically printed specimens have more and larger defects than horizontally printed ones. The fatigue property of horizontally printed specimens is better than that of vertically printed specimens. The anisotropy caused by printing orientation is the reason for the difference in fatigue property. Crack propagation rate increases with temperature. A large number of secondary cracks occurred during the crack propagation at elevated temperature. The branching of secondary cracks releases the energy at the crack tip, and thus slows down the crack growth. |
| 资助机构 | National Natural Science Foundation of China [11872364, 11932020]; CAS Pioneer Hundred Talents Program |
| 会议录 | INTERNATIONAL JOURNAL OF FATIGUE
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| 语种 | 英语 |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000510947500024 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/90526]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qian GA,Jian,Zhimo,Pan XN,et al. In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting[C]. 见:. Univ Porto, Fac Engn, Porto, PORTUGAL. SEP 05-07, 2018. |
入库方式： OAI收割
来源：力学研究所
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