Enhanced fatigue characteristics of a topology-optimized porous titanium structure produced by selective laser melting
文献类型：期刊论文
| 作者 | Liu, Y. J.2,3; Ren, D. C.2,4; Li, S. J.2,4; Wang, H.2,4; Zhang, L. C.1; Sercombe, T. B.3 |
| 刊名 | ADDITIVE MANUFACTURING
 |
| 出版日期 | 2020-03-01 |
| 卷号 | 32页码:10 |
| 关键词 | Selective laser melting Titanium alloy Fatigue property Porous structure Twinning |
| ISSN号 | 2214-8604 |
| DOI | 10.1016/j.addma.2020.101060 |
| 通讯作者 | Li, S. J.(shjli@imr.ac.cn) ; Zhang, L. C.(zhang@ecu.edu.au) ; Sercombe, T. B.(tim.sercombe@uwa.edu.au) |
| 英文摘要 | The fatigue properties are critical considerations for porous structures, and most of the existing porous materials have unsatisfactory performances due to a lack of structural optimization. This work shows that a topology-optimized structure fabricated by selective laser melting using commercial-purity titanium (CP-Ti) exhibits excellent fatigue properties with an ultra-high normalized fatigue life of similar to 0.65 at 10(6) cycles and at a low density of 1.3 g/cm(3). The main factors affecting fatigue, i.e., material properties and a porous structure were studied. Both the factors can affect the fatigue crack initiation time, thereby affecting the fatigue life. Because of twinning that occurred during the fatigue process, the porous CP-Ti samples exhibit a high plasticity. In addition, the fatigue crack propagation rate is significantly reduced because of the high plasticity of the CP-Ti material and the occurrence of fatigue crack deflection. |
| 资助项目 | Chinese MoST[2016YFC1102601] ; Chinese MoST[2017YFC1104903] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC031-02] ; National Natural Science Foundation of China[51871220] ; Australian Research Council[DP170104307] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000522928600041 |
| 出版者 | ELSEVIER |
| 资助机构 | Chinese MoST ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; Australian Research Council |
| 源URL | [http://ir.imr.ac.cn/handle/321006/138450]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Li, S. J.; Zhang, L. C.; Sercombe, T. B. |
| 作者单位 | 1.Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Perth, WA 6027 USA 2.Chinese Acad Sci, Inst Met Res, Titanium Alloy Lab, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Univ Western Australia, Sch Mech & Chem Engn, 35 Stirling Highway, Nedlands, WA 6009, Australia 4.Univ Sci & Technol China, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Y. J.,Ren, D. C.,Li, S. J.,et al. Enhanced fatigue characteristics of a topology-optimized porous titanium structure produced by selective laser melting[J]. ADDITIVE MANUFACTURING,2020,32:10. |
| APA | Liu, Y. J.,Ren, D. C.,Li, S. J.,Wang, H.,Zhang, L. C.,&Sercombe, T. B..(2020).Enhanced fatigue characteristics of a topology-optimized porous titanium structure produced by selective laser melting.ADDITIVE MANUFACTURING,32,10. |
| MLA | Liu, Y. J.,et al."Enhanced fatigue characteristics of a topology-optimized porous titanium structure produced by selective laser melting".ADDITIVE MANUFACTURING 32(2020):10. |
入库方式： OAI收割
来源：金属研究所
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