Robust additive manufacturable Ni superalloys designed by the integrated optimization of local elemental segregation and cracking susceptibility criteria
文献类型：期刊论文
| 作者 | Yu, Hao1; Fu, Jiabo1; Wang, Chenchong1; Chen, Yinping1; Wang, Lingyu1; Fang, Haixing2,3,4; Li, Jinguo5; van der Zwaag, Sybrand6; Xu, Wei1 |
| 刊名 | ACTA MATERIALIA
 |
| 出版日期 | 2024-03-01 |
| 卷号 | 266页码:15 |
| 关键词 | Additive manufacturability Boron segregation Computational design Phase boundaries Ni superalloys |
| ISSN号 | 1359-6454 |
| DOI | 10.1016/j.actamat.2024.119658 |
| 通讯作者 | Xu, Wei(xuwei@ral.neu.edu.cn) |
| 英文摘要 | To achieve an effective design of additively manufacturable Ni superalloys with decent service performance, a hybrid computational design model has been developed, where the strategy to tailor local elemental segregations was integrated within a scheme of minimizing the cracking susceptibility. More specifically, the phase boundary of primary NbC / gamma matrix was introduced into the design routine to tune the spatial distribution of critical solutes at an atomic scale, thereby inhibiting the formation of borides and segregation-induced cracking. Based on the output of the design, new grades of Ni superalloy have been developed with excellent additive manufacturability, as confirmed by the robustness of printing parameters in fabricating low-defect-density samples. The capability of the phase boundaries to evenly distribute boron atoms was validated experimentally, and the cracking induced by uncontrolled boron segregation at grain boundaries was effectively prevented. The newly designed alloys showed good tensile properties and decent oxidation resistance at different service temperatures, which are comparable to those of conventionally produced superalloys. The finding that phase boundaries can be employed to prevent undesirable clustering of boron atoms can be extended to manipulate the distributions of other critical elements, which provides a new path for designing novel Ni superalloys with balanced printability and mechanical properties. |
| 资助项目 | National Key Research and Development Program[2021YFB3702500] ; National Natural Science Foundation of China[52204383] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001165142000001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | National Key Research and Development Program ; National Natural 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 | Xu, Wei |
| 作者单位 | 1.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China 2.European Synchrotron Radiat Facil, 71 Ave Martyrs, F-380000 Grenoble, France 3.Univ Grenoble Alpes, Grenoble INP, CNRS SIMaP, 1130 Rue Piscine, F-38402 Saint Martin Dheres, France 4.Univ Lyon, CNRS, INSA Lyon, CETHIL,MATEIS, F-69621 Villeurbanne, France 5.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 6.Delft Univ Technol, Fac Aerosp Engn, Novel Aerosp Mat Grp, NL-2629 HS Delft, Netherlands |
| 推荐引用方式 GB/T 7714 | Yu, Hao,Fu, Jiabo,Wang, Chenchong,et al. Robust additive manufacturable Ni superalloys designed by the integrated optimization of local elemental segregation and cracking susceptibility criteria[J]. ACTA MATERIALIA,2024,266:15. |
| APA | Yu, Hao.,Fu, Jiabo.,Wang, Chenchong.,Chen, Yinping.,Wang, Lingyu.,...&Xu, Wei.(2024).Robust additive manufacturable Ni superalloys designed by the integrated optimization of local elemental segregation and cracking susceptibility criteria.ACTA MATERIALIA,266,15. |
| MLA | Yu, Hao,et al."Robust additive manufacturable Ni superalloys designed by the integrated optimization of local elemental segregation and cracking susceptibility criteria".ACTA MATERIALIA 266(2024):15. |
入库方式： OAI收割
来源：金属研究所
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