Investigation of Building Orientation and Aging on Strength–Stiffness Performance of Additively Manufactured Maraging Steel

The interaction between building orientation and heat treatment may change the strength–stiffness behavior of maraging steel manufactured by powder bed fusion (PBF). Further investigations about correlation fracture characteristics microstructures with measured properties are needed to improve process findings. Thus, this study investigated way an (0°, 45°, 90°) specimen condition (as-built aged) defects mechanism mechanical 300 PBF. Aging treatment, microstructure characterization, density measuring, tensile microhardness tests, fractography were performed on specimens. aging strengthened material, which also reduced probability defect coalescence. affected stiffness, rising in ? 70.5 GPa for 0° aged Furthermore, changed melt pool stretching direction, coalescence rises elongation at break 16.5% as-built mechanisms show importance considering performance additively 300.