Exploring mechanical response and fatigue properties of laser powdered-bed fusion IN718 superalloy: Crystal plasticity modeling and defect-based life prediction
文献类型：期刊论文
| 作者 | Mahmood, Asif1; Sun, Chuanwen1; Li, Wei1; Lashari, Muhammad Imran1; Sun, Rui3; Li C(李成)2; Hu, Zifan1 |
| 刊名 | ENGINEERING FAILURE ANALYSIS
 |
| 出版日期 | 2025-06-15 |
| 卷号 | 175页码:23 |
| 关键词 | Crystal plasticity Laser powdered-bed fusion Solution aging Very high cycle fatigue Defect-based fatigue life prediction |
| ISSN号 | 1350-6307 |
| DOI | 10.1016/j.engfailanal.2025.109601 |
| 通讯作者 | Li, Wei(lliw@bit.edu.cn) ; Sun, Rui(sunrui_nin@163.com) |
| 英文摘要 | The mechanical response and fatigue properties of laser powdered-bed fusion IN718 superalloy were explored experimentally and numerically. Firstly, uniaxial fatigue testing was conducted to investigate failure mechanisms under two stress ratios in the high-cycle and very high-cycle regimes, for the as-built and solution aging conditions. The fracture surfaces reveal the competing crack nucleation behaviors driven by manufacturing or crystallographic defects. Furthermore, solution aging significantly improves fatigue life compared to as-built conditions, demonstrating higher fatigue lives under similar stress levels. Secondly, crystal plasticity finite element (CPFE) modeling was employed to develop a statistically representative volume element, enabling evaluation of the local stress and strain distributions with and without pores under cyclic loading. In addition, model parameters were calibrated using experimental stress-strain data, emphasizing the precision and validity of the proposed model. The computational results show that softened grains oriented 45 degrees to the loading direction exhibit greater deformation. Moreover, the accumulated plastic strain increases as the loading cycles progress. Finally, a fatigue life prediction model was developed, considering the sensitivity of crack nucleation to manufacturing and crystallographic defects, along with CPFE results, showing good consistency between experimental and predicted fatigue lives across different stress levels in high-cycle and very high-cycle regimes. |
| 分类号 | 一类 |
| WOS关键词 | HIGH-CYCLE FATIGUE ; INCONEL 718 ; LOCALIZED DEFORMATION ; CRACK INITIATION ; HEAT-TREATMENT ; DELTA-PHASE ; MICROSTRUCTURE ; INCLUSIONS ; STRENGTH |
| 资助项目 | National Natural Science Foundation of China[52175128] |
| WOS研究方向 | Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001471966100001 |
| 资助机构 | National Natural Science Foundation of China |
| 其他责任者 | Li, Wei，Sun, Rui |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/101106]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 作者单位 | 1.Beijing Inst Technol, Sch Mech Engn, Beijing 100081, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 3.Northwest Inst Nonferrous Met Res, Refractory Mat Res Cent, Xian 710016, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Mahmood, Asif,Sun, Chuanwen,Li, Wei,et al. Exploring mechanical response and fatigue properties of laser powdered-bed fusion IN718 superalloy: Crystal plasticity modeling and defect-based life prediction[J]. ENGINEERING FAILURE ANALYSIS,2025,175:23. |
| APA | Mahmood, Asif.,Sun, Chuanwen.,Li, Wei.,Lashari, Muhammad Imran.,Sun, Rui.,...&Hu, Zifan.(2025).Exploring mechanical response and fatigue properties of laser powdered-bed fusion IN718 superalloy: Crystal plasticity modeling and defect-based life prediction.ENGINEERING FAILURE ANALYSIS,175,23. |
| MLA | Mahmood, Asif,et al."Exploring mechanical response and fatigue properties of laser powdered-bed fusion IN718 superalloy: Crystal plasticity modeling and defect-based life prediction".ENGINEERING FAILURE ANALYSIS 175(2025):23. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。