|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Metals: Establishing Location Specific, Processing-Microstructure-Property-Relationships III
||Process Modeling, Microstructure Measurements, and Residual Stresses in Additively Manufactured Austenitic Stainless Steels
||Josh Sugar, Michael Stender, Lauren Beghini, Samuel Subia, David Keicher, Chris D'Elia, Mike Hill, Chris San Marchi
|On-Site Speaker (Planned)
A fundamental challenge in AM processes is the coupling of the resultant material properties and the shaping process. In conventional manufacturing, the fundamental materials properties are measured from a billet, which is later subtractively machined into its final shape. In a directed energy deposition (DED) process, the thermal character and energy input that is used play a role in defining both the final geometric form and the fundamental materials properties that result from the process-induced thermal treatments. While the microstructures of DED-built parts can be quite different from conventionally made weld and wrought materials, we will show that properties are comparable. Residual stresses management, however, is different in AM materials and requires understanding of the constraints and processing conditions imposed by the DED process. Progress on a DED process model that predicts residual stresses in these materials, and the relationship between these predictions and microstructure/property measurements will be presented.
||Planned: Supplemental Proceedings volume