| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Role of Thermal Gradients in the Microstructure Evolution in EBM Ti-6Al-4V Builds |
| Author(s) |
Sabina Kumar, Benjamin Stump, Sudarsanam S. Babu |
| On-Site Speaker (Planned) |
Sabina Kumar |
| Abstract Scope |
Additive Manufacturing (AM) literature has shown that the final properties of components are influenced by complex interactions between geometry, process parameters and alloy chemistry. These interactions can be traced back to spatial and temporal variations of thermal and mechanical signatures (i.e., T {x, y, z, time}). With this constant fluctuation in thermo-mechanical signatures, we may induce constrained equilibrium conditions, leading to the decomposition of parent to product phases. A heat transfer simulation can be used to track the thermal gradients and interphase velocities of a build. In order to understand solid-state phase transformations under varying thermal gradients do so we printed cubes of Ti-6Al-4V with 3 different scan strategies. EBSD analysis show variations in the texture and microstructure at the bottom, middle and top sections. Correlating this to the microstructure we can get information on the effect of the thermal gradients on the product phase. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |