|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||A-2: Additive Manufacturing of Metals: Testing Durability
||Roberta Beal, Veronica Livescu, George Gray, Manny Lovato
|On-Site Speaker (Planned)
Additive manufacturing (AM) of metals is vital due to its customizability, energy efficiency, and lower cost as compared with conventional wrought material. The disadvantage of this material is that it has a differing microstructure compared with the wrought material. By processing the (AM) material through heat treatment (recrystallization), it develops with a microstructure that is similar to wrought metal.
The (AM) material is tested, as is and in the recrystallized state, and then metallographically prepared for qualitative and quantitative comparison to the wrought material using optical microscopy and SEM and EBSD microscopy.
Initial research in (AM) metallic materials (stainless steels, tantalum, and titanium) indicates that the (AM) creates highly anisotropic microstructures. Mechanical testing is used to assess differences in the performance of these materials. Post-mortem metallographic analysis is used to unveil connections between performance and microstructural characteristics that will guide the use of (AM) materials for engineering applications of interest.
||Planned: A print-only volume