| Cracking on a nickel-based superalloy fabricated by direct energy deposition | |
| Zhang, Xue1,2; Mu, Ya-hang1,2; Ma, Liang3; Liang, Jing-jing1,2; Zhou, Yi-zhou2; Sun, Xiao-feng2; Li, Jin-guo1,2 | |
| 通讯作者 | Liang, Jing-jing(jjliang@imr.ac.cn) ; Li, Jin-guo(jgli@imr.ac.cn) |
| 2024-06-28 | |
| 发表期刊 | CHINA FOUNDRY
 |
| ISSN | 1672-6421 |
| 页码 | 8 |
| 摘要 | Cracks have consistently been a significant challenge limiting the development of additive manufactured nickel-based superalloys. It is essential to investigate the location of cracks and their forming mechanism. This study extensively examines the impact of solidification process, microstructural evolution, and stress concentration on crack initiation during direct energy deposition (DED). The results emphasize that the crack formation is significantly related to large-angle grain boundaries, rapid cooling rates. Cracks caused by large-angle grain boundaries and a fast-cooling rate predominantly appear near the edge of the deposited samples. Liquation cracks are more likely to form near the top of the deposited sample, due to the presence of gamma/gamma ' eutectics. The secondary dendritic arm and the carbides in the interdendritic regions can obstruct liquid flow during the final stage of solidification, which results in the formation of solidification cracks and voids. This work paves the way to avoid cracks in nickel-based superalloys fabricated by DED, thereby enhancing the performance of superalloys. |
| 关键词 | location cracks direct energy deposition nickel-based superalloys |
| 资助者 | Defense Industrial Technology Development Program ; National Science and Technology Major Project, China ; Science Center for Gas Turbine Project |
| DOI | 10.1007/s41230-024-3111-0 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | Defense Industrial Technology Development Program[JCKY2020130C024] ; National Science and Technology Major Project, China[Y2019-VII-0011-0151] ; Science Center for Gas Turbine Project[P2022-C-IV-002-001] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| WOS类目 | Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:001258571000001 |
| 出版者 | SPRINGER SINGAPORE PTE LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/187464 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Liang, Jing-jing; Li, Jin-guo |
| 作者单位 | 1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xue,Mu, Ya-hang,Ma, Liang,et al. Cracking on a nickel-based superalloy fabricated by direct energy deposition[J]. CHINA FOUNDRY,2024:8. |
| APA | Zhang, Xue.,Mu, Ya-hang.,Ma, Liang.,Liang, Jing-jing.,Zhou, Yi-zhou.,...&Li, Jin-guo.(2024).Cracking on a nickel-based superalloy fabricated by direct energy deposition.CHINA FOUNDRY,8. |
| MLA | Zhang, Xue,et al."Cracking on a nickel-based superalloy fabricated by direct energy deposition".CHINA FOUNDRY (2024):8. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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