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This study provides a methodology for exploring the microstructural and mechanical properties of the Haynes®282® alloy produced via the Powder Bed Fusion-Electron Beam (PBF-EB) process. Employing 2D Electron Backscatter Diffraction (EBSD) data, we have successfully generated 3D representations of columnar microstructures using the Representative Volume Element (RVE) method. This methodology allowed for the validation of elastic properties through Crystal ElasticityFinite Element (CEFE) computational homogenization, revealing critical insights into the materialbehavior. This study highlights the importance of accurately representing the grain morphology and crystallographic texture of the material. Our findings demonstrate that created virtual models can predict directional elastic properties with a high level of accuracy, showing a maximum error of only ~5% compared to the experimental results. This precision underscores the potential of our approach for predictive modeling in Additive Manufacturing (AM), specifically for materials with complex, non-homogeneous microstructures. It can be concluded that the results uncover the intricate link between microstructural features and mechanical properties, underscoring both the challenges encountered and the critical need for the accurate representation of grain data, as well as the significance of achieving a balance in EBSD area selection, including the presence of anomalies in strongly textured microstructures., CC BY 4.0

Additive manufacturing (AM) is gaining significant attention in manufacturing engineering owing to its advantages compared to traditional manufacturing methods. Microstructures that result from the AM process often lead to anisotropic mechanical properties of produced components. In this study the Ni-based Alloy 718 is analysed. It has been shown that the microstructure of this polycrystalline material can be tailored to obtain different grain morphology distributions and crystallographic textures. In this paper, the reproduction of three typical microstructures, equiaxed, columnar and combined (equiaxed and columnar), are investigated to determine their elastic anisotropic properties. Virtual testing is applied on synthetic representative volume elements (RVE) for the equiaxed and columnar grain structures, and representative area element (RAE) for the combined structure. The crystal elasticity finite element method (CEFEM) is utilized to predict macroscopic elastic properties. This method allows the implementation of grain crystallographic orientations as input texture and the generation of homogenized elastic stiffness matrix predicting the directional engineering stresses of polycrystal microstructures. The comparison of the simulation results for the three microstructures studied demonstrates significant property variation. Also, the comparison of the different number of grains and various interface area cases of the combined structure shows diversity in the results presented in this study., The proceedings and related papers are all based on the open-access model, whichmeans interested individuals and institutions can access the material for free.Users are allowed to read, download, copy, distribute, print, search, or link to thefull texts of the articles in this proceedings without asking prior permission fromthe publisher or the author. This is in accordance with the BOAI definition of openaccess. This work was financially supported by the PODFAM project and the PRIMUS Foundation.