|About this Abstract
||2022 TMS Annual Meeting & Exhibition
||Additive Manufacturing of Large-scale Metallic Components
||Process-structure-property Study on CP-Ti (Grade 2) Produced via High Deposition AM Laser-hot Wire
||Hannah Sims, John J Lewandowski
|On-Site Speaker (Planned)
CP-Ti grade 2 has been produced via a wire-based additively manufactured laser hot wire process using biomedical grade CP-Ti grade 2 wire. Single bead deposits were used to produce a process map that analyzed the effects of laser power, travel speed, and wire feed speed. From this process map several combinations of parameters were used to deposit multibead wall prints. The fatigue and fracture behaviors of each of the multibead deposits were analyzed in this study using Charpy bar samples excised from the walls in different orientations. Hardness testing, fatigue crack growth testing, and fracture toughness testing were conducted, followed by optical and scanning electron microscopy. Additionally, large scale electron backscatter diffraction was performed to document the grain structure development throughout the entire build. The effect of build parameters, sample orientation, and resulting microstructure/defects on the fracture properties will be presented and compared to more conventionally processed CP-Ti.
||Additive Manufacturing, Titanium, Mechanical Properties