| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
|
| Presentation Title |
Local Control of Strain, Microstructure, and Properties in Ti-5553 Lattice Materials |
| Author(s) |
Caleb Andrews, Jenny Wang, Maria Strantza, Manyalibo Matthews, Mitra Taheri |
| On-Site Speaker (Planned) |
Caleb Andrews |
| Abstract Scope |
The manufacture of architected materials via laser powder bed fusion additive manufacturing (L-PBF AM) enables the tailoring of properties through variation of geometry and topology. Simultaneously, controlling the laser processing parameters within L-PBF allows for the tuning of the local solidification environment, which can be used to tailor the microstructure of a material. In combining these approaches and varying the laser parameters within the node of an architected lattice cell, locally tuned microstructures, residual strains, and mechanical properties can be induced. Using an approach of high-resolution electron backscattering diffraction, micromechanical hardness measurements, and in-situ melt pool monitoring, a link between processing conditions, microstructure, and properties is established from the microscale to the mesoscale of a lattice cell. By enabling tuneability of microstructures and microstrains within the ‘0th-order’ scale of a single lattice strut or node, additional degrees of property enhancement and tailorability can be achieved with architected materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Mechanical Properties |