| Issue |
MATEC Web Conf.
Volume 401, 2024
21st International Conference on Manufacturing Research (ICMR2024)
|
|
|---|---|---|
| Article Number | 02004 | |
| Number of page(s) | 6 | |
| Section | Additive Manufacturing | |
| DOI | https://doi.org/10.1051/matecconf/202440102004 | |
| Published online | 27 August 2024 | |
Finite element modeling of machining-induced microstructure evolution of IN625 superalloy fabricated by laser-based powder bed fusion
1 School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
2 Shandong Institute of Mechanical Design and Research, Jinan, China
* Corresponding author: libx@qlu.edu.cn
The surface quality of components fabricated via laser-based powder bed fusion (L-PBF) is highly dependent on the post-machining technique. This study aims to investigate the microstructure evolution of the turning-affected subsurface layer of the IN625 superalloy manufactured by L-PBF with the assistance of the finite element analysis (FEA). A finite element model with integrated user-defined subroutine VUSDFLD was created for numerical modeling of the dislocation density and grain size evolution due to turning operation. The simulation results regarding grain size and the depth of the affected layer were validated against the experiments. This study shed some light on the metallurgical behavior evolution when turning of L-PBF of nickel-based superalloy based on the proposed material microstructure model.
© The Authors, published by EDP Sciences, 2024
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