Mechanical Characterization and Fatigue Behavior of AlSi10Mg Alloy Fabricated via Laser Powder Bed Fusion: Influence of Printing Orientation

Additive manufacturing (AM) techniques, particularly Laser Powder Bed Fusion (PBF-LB), have revolutionized the production of complex components, offering unparalleled design freedom and material customization. This paper delves into the mechanical intricacies of AlSi10Mg manufactured via PBF-LB, with a specific focus on its mechanical properties and fatigue behavior under different loading conditions when the material has not been heat treated. The study investigates the influence of printing orientation on the mechanical characteristics of AlSi10Mg components. It is revealed that build orientation plays a crucial role in determining the material’s mechanical response, with distinct trends observed in different orientations. Furthermore, the fatigue performance of AlSi10Mg under flexural bending and axial loading conditions are studied. Results indicate a significant enhancement in fatigue resistance when components are printed in optimal orientations, underscoring the importance of orientation control in additive manufacturing processes. Overall, this study contributes to a comprehensive understanding of the mechanical behavior of AlSi10Mg produced via PBF-LB, offering insights for optimizing component design and manufacturing processes in various industries.