|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Nano/Micro-mechanics and Length-scale Phenomena
||Intentional and Unintentional Spatial Variation in Laser Powder Bed Fusion
||Joy Gockel, Cherish Lesko, Anna Dunn, Daniel Young, Luke Sheridan
|On-Site Speaker (Planned)
Additively manufactured material is built at the same time as the component. Changes in the processing conditions result in spatial differences in the microstructure and defects of the fabricated material. These differences will ultimately impact the mechanical properties of the final components. An understanding of the processing-structure-properties relationship can be used to purposefully tailor the properties within desired sections of a component using strategic processing modifications. However, unintentional variation in the material also results from aspects such as part geometry. Vickers microhardness is used to investigate the influence of processing and geometry on the properties of nickel superalloy 718 fabricated with laser powder bed fusion. Spatial measurements expose within sample variation that is related back to the microstructural features and processing conditions. The results from this work can be used to continue to understand the processing–structure-properties relationship and lead towards improved mechanical properties in additive manufacturing.
||Additive Manufacturing, Characterization,