The Effect of Print Parameters and Spatter on Additively Manufactured Inconel 718

Additive manufacturing (AM) creates a potential to fabricate structural components for nuclear reactors that not only exhibit enhanced properties, but also require less time for qualification. However, inherent variability in micromechanical characteristics of AM-produced parts paired with localized spatter can lead to nonoptimal performance and variation between prints. This study amasses a vast array of data points that document the microstructure and mechanical attributes at specific locations within eighteen Inconel 718 parts created via AM, created with varying parameters. Employing Wire EDM (electrical discharge machining) allowed for the sectioning of samples with minimal loss of material, while precision in location tracking was achieved through laser-engraved labels. The utilized characterization methods include optical microscopy, XCT (X-Ray Computed Tomography), and microhardness testing. This study aims to analyze build conditions in respect to both build parameters and proximity within prints could provide insight into predicting how components can affect neighboring prints, paving the way for the enhancement of future AM parts.