2026 Lister FAST Roll Ti64 Texture Properties

Low-cost titanium feedstock derived from oversized additive manufacturing (AM) powders can be effectively consolidated into billets using the field-assisted sintering technology (FAST) process in the solid state, allowing for short processing times and reusable tooling. Many engineering applications necessitate material in the form of larger, flat plate or sheet products, which can be produced by combining the FAST process with existing thermomechanical processing methods such as hot rolling, leading to a novel technique termed FAST-roll. This study examines the microstructural evolution, crystallographic texture, and mechanical properties of FAST-roll plates synthesized from surplus AM powder, juxtaposed with commercially available unidirectionally (UD) rolled plate material. The findings demonstrate that the near-isotropic fine-grained microstructure resulting from FAST-consolidation facilitates hot rolling, resulting in a final plate product that is less anisotropic and avoids macrozone formation, thereby suggesting ease of forming compared to traditional melt-wrought-derived materials. This innovative approach indicates significant potential for the development of low-cost, sustainable titanium plates and sheets suitable for a variety of engineering applications and further downstream processing.