Thermo-mechanical fatigue behavior and life prediction of selective laser melted inconel 718
文献类型：期刊论文
| 作者 | Zou, C. L.1; Pang, J. C.1; Li, W. B.1,2; Wang, N.1,3; Feng, Y. Y.1; Li, S. X.1; Zhang, H.2; Zhang, Z. F.1 |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
 |
| 出版日期 | 2025 |
| 卷号 | 919页码:12 |
| 关键词 | Inconel 718 Selective laser melting Thermo-mechanical fatigue Damage mechanism Fatigue life prediction |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2024.147502 |
| 通讯作者 | Pang, J. C.(jcpang@imr.ac.cn) ; Zhang, Z. F.(zhfzhang@imr.ac.cn) |
| 英文摘要 | The thermo-mechanical fatigue (TMF) property and corresponding damage mechanisms of selective laser melted (SLM) Inconel 718 superalloy were investigated systemically. The results show that the TMF life under in-phase (IP) loading is lower than that under out-of-phase (OP) loading, and the life difference gradually decreases with decreasing the strain amplitude. The fatigue cracks mainly exhibit inter-granular cracking characteristics under IP loading, and the delta phase embedded to the grain boundary promotes the creep cavity formation and then causes the fatigue crack propagation. While under OP loading, the fatigue crack is mainly characterized by trans- granular cracking, the oxidation induced crack extends from the specimen surface to the interior. A parameter, known as the shape factor k , has been discovered to exhibit high stability in temperature variations. Given the high stability of the k value and the quantitative relationship between stress and plastic strain range across different loading modes, a rapid prediction method for TMF hysteretic energy based on low cycle fatigue (LCF) has been proposed. Finally, combined with the energy cumulative damage model, the TMF life is successfully predicted. This approach significantly reduces the experimental quantity and complexity required for the TMF life prediction process, demonstrating substantial industrial application value. |
| 资助项目 | National Natural Science Foundation of China (NSFC)[52401181] ; National Natural Science Foundation of China (NSFC)[51871224] ; National Natural Science Foundation of China (NSFC)[52130002] ; National Natural Science Foundation of China (NSFC)[52321001] ; Science Center for Gas Turbine Project[P2022-C-IV-001-001] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001356263900001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Science Center for Gas Turbine Project |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Pang, J. C.; Zhang, Z. F. |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China 2.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China 3.Shenyang Univ Technol, Sch Mat Sci & Engn, Shenyang 110870, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zou, C. L.,Pang, J. C.,Li, W. B.,et al. Thermo-mechanical fatigue behavior and life prediction of selective laser melted inconel 718[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2025,919:12. |
| APA | Zou, C. L..,Pang, J. C..,Li, W. B..,Wang, N..,Feng, Y. Y..,...&Zhang, Z. F..(2025).Thermo-mechanical fatigue behavior and life prediction of selective laser melted inconel 718.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,919,12. |
| MLA | Zou, C. L.,et al."Thermo-mechanical fatigue behavior and life prediction of selective laser melted inconel 718".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 919(2025):12. |
入库方式： OAI收割
来源：金属研究所
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