Owing to the inherent nature of the process, typically material produced via electron beam melting (EBM) has a columnar microstructure. As a result of that, the material will have anisotropic mechanical properties. In this work, anisotropic elastic properties of EBM built Alloy 718 samples at room temperature were investigated by using experiments and modelling work. Electron backscatter diffraction data from the sample microstructure was used to predict the Youngs modulus. The results showed that the model developed in the finite element software OOF2 was able to capture the anisotropy in the Youngs modulus. The samples showed transversely isotropic elastic properties having lowest Youngs modulus along build direction. In addition to that, complete transversely isotropic stiffness tensor of the sample was also calculated.
Funding Agencies|European Regional Development Fund, project grant 3Dprint; KK Foundation (Stiftelsen for Kunskaps- och Kompetensutveckling), project grant SUMAN-Next