High-precision Cu alloy microlattices with superior energy absorption capacity enabled by nanoprecipitation engineering
文献类型：期刊论文
| 作者 | Wang, Liqiang1; Qu, Shuo2; Fu, Huangliu4; Zhou, Xin1; Ding, Junhao2; Yang, Hui5; Zhao, Qi5; Song, Xu2; Lu, Yang3 |
| 刊名 | SCRIPTA MATERIALIA
 |
| 出版日期 | 2024-01-15 |
| 卷号 | 239页码:7 |
| 关键词 | Additive manufacturing Copper alloy Nanoprecipitation engineering Microlattices |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2023.115801 |
| 通讯作者 | Song, Xu(xsong@mae.cuhk.edu.hk) ; Lu, Yang(ylu1@hku.hk) |
| 英文摘要 | Printing of thin -wall copper alloy components with high mechanical performance using selective laser melting remains challenging. Here, the introduction of the soft Cr nanoprecipitations via increasing the Cr to Nb atomic ratio based on commercial CuCrNb alloys can suppress the excessive formation of Cr2Nb Laves phase and enhance the deformability of CuCrNb microlattices. Small printing layer thickness contributed to the highdensity and small -size nanoprecipitations. Dual nanoprecipitations strategy enables us to successfully fabricate high -precision CuCrNb microlattices with the feature size down to 100 mu m and exceptional printability, high mechanical strength, and homogeneous deformability until densification strain. By tailoring the precipitation behavior of Cr phase at post -printing stage, CuCrNb microlattices can further enhance the mechanical performance. Our peak -aged Gyroid CuCrNb microlattice displays an ultrahigh specific energy absorption of 23 J/g without fracture at strain above 60 %, even surpassing that of some titanium and aluminum alloys lattice structures with low material densities. |
| 资助项目 | Shenzhen-Hong Kong-Macau Science and Technology Program (Category C)[SGDX2020110309300301] ; Key R & D Programmes from the Science and Technology Department of Sichuan Province (Key Science & Technology Project)[2022YFSY0001] ; Changsha Municipal Science and Technology Bureau[kh2201035] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001159399100001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Shenzhen-Hong Kong-Macau Science and Technology Program (Category C) ; Key R & D Programmes from the Science and Technology Department of Sichuan Province (Key Science & Technology Project) ; Changsha Municipal Science and Technology Bureau |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Song, Xu; Lu, Yang |
| 作者单位 | 1.City Univ Hong Kong, Dept Mech Engn, Hong Kong, Peoples R China 2.Chinese Univ Hong Kong, Dept Mech & Automat Engn, Hong Kong, Peoples R China 3.Univ Hong Kong, Dept Mech Engn, Hong Kong, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China 5.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Liqiang,Qu, Shuo,Fu, Huangliu,et al. High-precision Cu alloy microlattices with superior energy absorption capacity enabled by nanoprecipitation engineering[J]. SCRIPTA MATERIALIA,2024,239:7. |
| APA | Wang, Liqiang.,Qu, Shuo.,Fu, Huangliu.,Zhou, Xin.,Ding, Junhao.,...&Lu, Yang.(2024).High-precision Cu alloy microlattices with superior energy absorption capacity enabled by nanoprecipitation engineering.SCRIPTA MATERIALIA,239,7. |
| MLA | Wang, Liqiang,et al."High-precision Cu alloy microlattices with superior energy absorption capacity enabled by nanoprecipitation engineering".SCRIPTA MATERIALIA 239(2024):7. |
入库方式： OAI收割
来源：金属研究所
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