Microstructure and mechanical property comparison of Inconel alloys fabricated using micro and conventional laser powder bed fusion
文献类型：期刊论文
| 作者 | Chen, Yixuan1; Wang, Weihao1; Ou, Yao1; Chang, Hai1; Wu, Yingna1; Yang, Rui1,2; Zhai, Zirong1; Li, Kefei3; Shen, Liyaowei3 |
| 刊名 | MATERIALS & DESIGN
 |
| 出版日期 | 2024 |
| 卷号 | 237页码:13 |
| 关键词 | Micro laser powder bed fusion Microstructure Isotropic mechanical properties Computational fluid dynamics |
| ISSN号 | 0264-1275 |
| DOI | 10.1016/j.matdes.2023.112534 |
| 通讯作者 | Zhai, Zirong(zhaizr@shanghaitech.edu.cn) |
| 英文摘要 | Compared to conventional laser powder bed fusion (c-LPBF), micro laser powder bed fusion (mu-LPBF) offers enhanced capabilities for fabricating complex components with exceptional accuracy. This is achieved through the utilization of a finer laser beam and smaller metal powder, leading to distinct differences in microstructure when compared to c-LPBF. Despite promising outcomes, a comprehensive understanding of these distinctions remains incomplete. One notable observation in the mu-LPBF samples in this study was the presence of a weaker 100 texture along the build direction. Additionally, these samples exhibited smaller grain sizes, a higher density of low-angle grain boundaries, and the presence of geometrically necessary dislocations. Significantly, mu-LPBF demonstrates the potential to produce IN718 with exceptional isotropic mechanical properties, primarily attributed to its capacity to generate refined microstructures and facilitate distinct solidification behaviors. Of particular significance was the remarkable 39.1 % increase in yield strength observed along the building direction by mu-LPBF. Furthermore, the differences in yield strength and ultimate tensile strength between various directions are notably reduced to 7 and 41 MPa, respectively, with a minimal total elongation variation of only 1.8 %. To gain deeper insights into the solidification behavior, Computational fluid dynamics were conducted in conjunction with the discrete element method. |
| 资助项目 | Double First-Class Initiative fund ; ShanghaiTech University ; CAS Interdisciplinary Innovation Team Project[JCTD-2020-10] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001138200400001 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | Double First-Class Initiative fund ; ShanghaiTech University ; CAS Interdisciplinary Innovation Team Project |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhai, Zirong |
| 作者单位 | 1.ShanghaiTech Univ, Ctr Adapt Syst Engn, 393 Huaxia Middle Rd, Shanghai 201210, Peoples R China 2.Chinese Acad Sci, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China 3.Aixway3d Jiangsu Technol Co Ltd, Taicang 215400, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yixuan,Wang, Weihao,Ou, Yao,et al. Microstructure and mechanical property comparison of Inconel alloys fabricated using micro and conventional laser powder bed fusion[J]. MATERIALS & DESIGN,2024,237:13. |
| APA | Chen, Yixuan.,Wang, Weihao.,Ou, Yao.,Chang, Hai.,Wu, Yingna.,...&Shen, Liyaowei.(2024).Microstructure and mechanical property comparison of Inconel alloys fabricated using micro and conventional laser powder bed fusion.MATERIALS & DESIGN,237,13. |
| MLA | Chen, Yixuan,et al."Microstructure and mechanical property comparison of Inconel alloys fabricated using micro and conventional laser powder bed fusion".MATERIALS & DESIGN 237(2024):13. |
入库方式： OAI收割
来源：金属研究所
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