Improved resource management is one of the key aspects of sustainability. Additive manufacturing (AM) contributes to this improvement by generating considerably less waste compared to subtractive manufacturing such as machining. Simulation could further improve resource management. Trial-and-error experimental printing is used to find important process parameters for laser-based powder bed fusion (PBF-LB) which is one of the most common AM processes. This generates material waste that could be avoided if simulation was used to determine the process parameters. Simulation can be used to understand the influence on the properties of AM parts by different process parameters and to finally print the parts right the first time with the desired properties. One of the important properties is the grain texture. Coarse columnar grain textures oriented along the build direction are typically seen in products manufactured by PBF-LB. This gives unfavorable anisotropic mechanical properties which mostly is not desired. In this work, a 2D Cellular Automata (CA) and Finite Element (FE) model is combined to predict the evolution of the grain texture in the nickel-based superalloy 625 processed by PBF-LB [1]. Two competing nucleation events are considered in the CA model when the melt pool is solidifying, epitaxial and heterogeneous nucleation. The grain growth after nucleation is computed according to a decentered square algorithm. The driving force for nucleation and grain growth is based on the undercooling which is obtained from the heat transfer FE model. The FE model is based on the PBF-LB process in Malmelöv et al. [2] where a small wall was built, and the simulation results are compared to the EBSD data from the built wall in their work. The simulated grain textures show good agreement with the EBSD data and coarser grains were obtained when the scan velocity and power were increased. This shows that the model can be used to better understand the relationship between the grain texture and the process parameters. REFERENCES [1] C. Andersson and A. Lundbäck. Modeling the Evolution of Grain Texture during Solidification of Laser Based Powder Bed Fusion Manufactured Alloy 625 Using a Cellular Automata Finite Element Model. Metals, 2023. [2] A. Malmelöv, C.-J. Hassila, M. Fisk, U. Wiklund and A. Lundbäck. Numerical Modeling and Synchrotron Diffraction Measurements of Residual Stresses in Laser Powder Bed Fusion Manufactured Alloy 625. Materials and Design, 2022.