Alternative Approach to Modeling of Nucleation and Remelting in Powder Bed Fusion Additive Manufacturing

نویسندگان

چکیده

In Powder bed fusion (PBF) of metals, the energy a laser- or electron beam is utilized to form near-net-shaped parts from powder bed. A very promising application PBF lies in direct control resulting microstructure by adjusting process parameters. Especially intentional tilting grains one certain direction offers complete new field activity for additively produced specially designed given load case. Nucleation essential utilization this effect. work, we introduce an alternative approach modeling nucleation metals. The model not intended cover every physical effect extreme complex phenomenon. Based on observations reported different researchers PBF, heuristic was applied consider within cellular- automata (CA) based crystal growth PBF. Utilizing implicit capability CA competitive grains, does require any additional computational capacities. numerical calculations are carried out using Message-Passing-Interface (MPI)- parallelization high-performance-computing (HPC) cluster located at Regional-Research-Center-Erlangen. results validated means experiments and EBSD- measurements. This article protected copyright. All rights reserved.

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ژورنال

عنوان ژورنال: Advanced Engineering Materials

سال: 2023

ISSN: ['1527-2648', '1438-1656']

DOI: https://doi.org/10.1002/adem.202201682