About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Symposium
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2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
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Presentation Title |
Investigate the height dependency of the micro-/defect-structure and mechanical properties of additively manufactured AlF357 aluminum alloy |
Author(s) |
Md Faysal Khan, P.D. Nezhadfar, Paul R. Gradl, Donald Godfrey, Jacky Diemann, Shuai Shao, Nima Shamsaei |
On-Site Speaker (Planned) |
Md Faysal Khan |
Abstract Scope |
When the laser powder bed fusion (L-PBF) additive manufacturing method is used to build components with increased heights, there is an increased probability of additional defects. This study investigated the effect of build height on the micro-/defect-structures, and, consequently, the mechanical properties of L-PBF AlF357, a member of the Al-Si-Mg alloy family. In this study, vertically fabricated cylinders of 316 mm tall and 15 mm diameter are fabricated and cut into specimens at different heights. Although not much differences in the microstructure (grain size and morphology) are observed, the defect size and population slightly vary with the height. Nonetheless, the tensile properties of the L-PBF AlF357 are found to be independent of height. This is ascribed to the identical microstructure and marginal difference in the defect size and distribution along the heights. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |