Thermal fatigue behavior of the ZGH451 Ni-based superalloy fabricated by direct energy deposition in the temperature range of 900-1100 °C
文献类型：期刊论文
| 作者 | Chen, Jiawang1,2; Song, Wei1,2; Yang, Yanhong1; Liang, Jingjing1; Zhou, Yizhou1; Sun, Xiaofeng1; Li, Jinguo1 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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| 出版日期 | 2025-03-01 |
| 卷号 | 210页码:121-137 |
| 关键词 | Direct energy deposition Thermal fatigue Crack initiation and propagation Ni-based superalloy |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2024.05.036 |
| 通讯作者 | Yang, Yanhong(yhyang@imr.ac.cn) ; Liang, Jingjing(jjliang@imr.ac.cn) ; Li, Jinguo(jgli@imr.ac.cn) |
| 英文摘要 | In this study, a novel Ni-based superalloy, ZGH451, has been fabricated using direct energy deposition (DED). The thermal fatigue resistance of ZGH451 is systematically evaluated at 900, 1000, and 1100 degrees C, primarily focusing on the crack initiation and propagation behaviors. The results indicate that higher peak temperatures lead to earlier initiation and more rapid propagation of cracks. Cracks are initiated at the defects and grain boundaries in the vicinity of the notch, and different crack propagation mechanisms (gamma' phase slip shearing, gamma' phase distortion shearing, and gamma' phase rafting shearing at 900, 1000, and 1100 degrees C, respectively) are the main reason for the different cracks propagation behaviors under the three temperatures. The main crack propagation paths are oriented at approximately 45 degrees with respect to the build direction, suggesting activation of the {111} <110 > slip system. Additionally, oxidation reduces the matrix strength and passivates the crack tips, leading to varying rates of crack propagation. At elevated temperatures, the synergistic effects of thermal stress and oxidative erosion are found to be the primary damage mechanisms of thermal fatigue. Overall, the proposed ZGH451 superalloy demonstrates exceptional thermal fatigue resistance, providing a crucial experimental reference for thermal fatigue in additively manufactured superalloys. (c) 2024 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | Defense Indus-trial Technology Development Program[JCKY2020130C024] ; National Key R&D Program of China[2021YFB3702503] ; Science Center for Gas Turbine Project[P2022-C-IV -0 02-0 01] ; National Science and Technology Major Project[Y2019-VII-0011-0151] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001352396800001 |
| 出版者 | ELSEVIER |
| 资助机构 | Defense Indus-trial Technology Development Program ; National Key R&D Program of China ; Science Center for Gas Turbine Project ; National Science and Technology Major Project |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Yang, Yanhong; Liang, Jingjing; Li, Jinguo |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Superalloys Div, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Jiawang,Song, Wei,Yang, Yanhong,et al. Thermal fatigue behavior of the ZGH451 Ni-based superalloy fabricated by direct energy deposition in the temperature range of 900-1100 °C[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2025,210:121-137. |
| APA | Chen, Jiawang.,Song, Wei.,Yang, Yanhong.,Liang, Jingjing.,Zhou, Yizhou.,...&Li, Jinguo.(2025).Thermal fatigue behavior of the ZGH451 Ni-based superalloy fabricated by direct energy deposition in the temperature range of 900-1100 °C.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,210,121-137. |
| MLA | Chen, Jiawang,et al."Thermal fatigue behavior of the ZGH451 Ni-based superalloy fabricated by direct energy deposition in the temperature range of 900-1100 °C".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 210(2025):121-137. |
入库方式： OAI收割
来源：金属研究所
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