Enhancing dynamic property in additive manufactured IN738LC alloy through cell orientation control
Cell structures are common substructures in additive-manufactured (AM) superalloys, yet their influence on high strain-rate dynamic behavior remains unclear. Herein, two IN738LC alloys with different cell orientations were fabricated via AM and assessed for dynamic behavior at strain rates of ∼105/s...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2025-05-01
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| Series: | Materials Research Letters |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2025.2472963 |
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| author | Mingchuan Li Jianfeng Gong Rui Ma Hongwei Ding Zhiguo Li Jun Ding Liqun Li Shuai Chang |
| author_facet | Mingchuan Li Jianfeng Gong Rui Ma Hongwei Ding Zhiguo Li Jun Ding Liqun Li Shuai Chang |
| author_sort | Mingchuan Li |
| collection | DOAJ |
| description | Cell structures are common substructures in additive-manufactured (AM) superalloys, yet their influence on high strain-rate dynamic behavior remains unclear. Herein, two IN738LC alloys with different cell orientations were fabricated via AM and assessed for dynamic behavior at strain rates of ∼105/s using flyer-plate impact tests. Results show that preferential cell growth along the building direction (BD) enhances spall strength by 12–13% (4.36∼4.51 GPa) compared to random orientations (3.91∼3.99 GPa). The enhancement arises from cell alignment along the BD. This alignment makes the cell wall, a damage nucleation site, parallel to the impact direction, restricting damage void coalescence and crack propagation. |
| format | Article |
| id | doaj-art-e3a151a194df4a9888b44f39a2a7d022 |
| institution | DOAJ |
| issn | 2166-3831 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Materials Research Letters |
| spelling | doaj-art-e3a151a194df4a9888b44f39a2a7d0222025-08-20T03:12:19ZengTaylor & Francis GroupMaterials Research Letters2166-38312025-05-0113548549310.1080/21663831.2025.2472963Enhancing dynamic property in additive manufactured IN738LC alloy through cell orientation controlMingchuan Li0Jianfeng Gong1Rui Ma2Hongwei Ding3Zhiguo Li4Jun Ding5Liqun Li6Shuai Chang7State Key Laboratory of Precision Welding and Joining of Materials and Structures, Harbin Institute of Technology, Harbin, People’s Republic of ChinaState Key Laboratory of Precision Welding and Joining of Materials and Structures, Harbin Institute of Technology, Harbin, People’s Republic of ChinaBeijing Power Machinery Institute, Beijing, People’s Republic of ChinaState Key Laboratory of Precision Welding and Joining of Materials and Structures, Harbin Institute of Technology, Harbin, People’s Republic of ChinaLaboratory for Shock Wave and Detonation Physics, Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, People’s Republic of ChinaDepartment of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore, SingaporeState Key Laboratory of Precision Welding and Joining of Materials and Structures, Harbin Institute of Technology, Harbin, People’s Republic of ChinaState Key Laboratory of Precision Welding and Joining of Materials and Structures, Harbin Institute of Technology, Harbin, People’s Republic of ChinaCell structures are common substructures in additive-manufactured (AM) superalloys, yet their influence on high strain-rate dynamic behavior remains unclear. Herein, two IN738LC alloys with different cell orientations were fabricated via AM and assessed for dynamic behavior at strain rates of ∼105/s using flyer-plate impact tests. Results show that preferential cell growth along the building direction (BD) enhances spall strength by 12–13% (4.36∼4.51 GPa) compared to random orientations (3.91∼3.99 GPa). The enhancement arises from cell alignment along the BD. This alignment makes the cell wall, a damage nucleation site, parallel to the impact direction, restricting damage void coalescence and crack propagation.https://www.tandfonline.com/doi/10.1080/21663831.2025.2472963Additive manufacturingIN738LC alloycell orientationhigh strain-rate deformationspall strength |
| spellingShingle | Mingchuan Li Jianfeng Gong Rui Ma Hongwei Ding Zhiguo Li Jun Ding Liqun Li Shuai Chang Enhancing dynamic property in additive manufactured IN738LC alloy through cell orientation control Materials Research Letters Additive manufacturing IN738LC alloy cell orientation high strain-rate deformation spall strength |
| title | Enhancing dynamic property in additive manufactured IN738LC alloy through cell orientation control |
| title_full | Enhancing dynamic property in additive manufactured IN738LC alloy through cell orientation control |
| title_fullStr | Enhancing dynamic property in additive manufactured IN738LC alloy through cell orientation control |
| title_full_unstemmed | Enhancing dynamic property in additive manufactured IN738LC alloy through cell orientation control |
| title_short | Enhancing dynamic property in additive manufactured IN738LC alloy through cell orientation control |
| title_sort | enhancing dynamic property in additive manufactured in738lc alloy through cell orientation control |
| topic | Additive manufacturing IN738LC alloy cell orientation high strain-rate deformation spall strength |
| url | https://www.tandfonline.com/doi/10.1080/21663831.2025.2472963 |
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