|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Additive Manufacturing: Building the Pathway towards Process and Material Qualification
||In Situ Synchrotron X-ray Diffraction and Tomography for Time-resolved Study of Phase and Structure Evolution during Consolidation of AM Metals
||Christoph Kenel, Christian Leinenbach, Ramille Shah, David Dunand
|On-Site Speaker (Planned)
We focus on the application of in situ X-ray diffraction and tomography to reveal the phase and structure evolution in AM metals during the property-defining consolidation step. Two AM technologies are discussed: beam-based, single-step AM of metal powders and two-step, extrusion-based 3D printing, reduction and sintering of oxide- or metal power-based inks. While the shape and properties of the manufactured part are defined in a single step in beam-based AM, 3D printing separates the shape-defining and the consolidation step. Understanding the underlying processes during material consolidation and resulting characteristic properties are crucial for successful application of AM technologies. In the first part of the talk, in situ setups on fast phase evolution upon rapid heating and cooling cycles mimicking beam-based AM of Ti-6Al-4V are discussed. In the second part, in situ studies focusing on phase and part shape evolution upon reduction and sintering of 3D printed Fe-based alloys are highlighted.
||Planned: Supplemental Proceedings volume