| Abstract Scope |
The unique thermal histories seen in additive manufacturing (AM) of metal alloys results in microstructures with phases, grain morphologies, or internal pores that differ from those in their conventionally processed counterparts. These microstructures dictate the resulting mechanical properties of the alloys; thus, to enable the adoption of AM for structural applications, an understanding of the links between microstructure and deformation and/or fracture is required in order to safely and reliably design against failure. In this talk, I will present our work on experimentally and computationally investigating the impact of these microstructural features on the stress-state dependent deformation and failure behavior of additively manufactured alloys. Additionally, I will describe our work on designing, fabricating, and characterizing functionally graded materials in which the chemistry is intentionally changed as a function of position to impart disparate properties as a function of position within a 3D component. |