The Effect of Process Conditions on Mechanical Properties of IN718 Material Fabricated by L-PBF (Laser Powder Bed Fusion)

Additive manufacturing (AM) technology, commonly known as 3D printing, has been recognized as a transformative method in industries as diverse as automotive, medical, defense, power generation, aerospace, shipbuilding, and heavy equipment. Evolving from prototyping to mass production, AM is now being utilized to manufacture complex and precise metal components that require intricate geometries. The current study systematically explores key L-PBF parameters, including laser power, scan speed, and layer thickness to understand their impact on the microstructure and mechanical behavior of the resulting nickel-based superalloy IN718components. Through a comprehensive analysis of the fabrication process, we aim to identify the optimal parameter set that ensures the desired mechanical properties, including tensile strength, hardness, and fatigue resistance.