| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Effect of Build Size to the Final Microstructures in Ti6Al4V After Selective Laser Melting |
| Author(s) |
Sinting Cynthia Chang, Samy Hocine, Steven Van Petegem, Tuerdi Maimaityili, Dario Ferreira Sanchez, Daniel Grolimund, Helena Van Swygenhoven |
| On-Site Speaker (Planned) |
Sinting Cynthia Chang |
| Abstract Scope |
In this work, we study the as-built microstructures of Ti6Al4V samples that were printed by in operando selective laser melting (SLM) at the MicroSAXS beamline of the Swiss Light Source (SLS). Several samples were built with the same SLM parameters but with different cross-sections. During printing X-ray diffraction patterns were recorded with a frequency of 20Hz. The microstructures and textures on the build and the frontal planes were investigated by Electron Backscatter Diffraction (EBSD). The prior β phase was reconstructed from the orientation of the α’ phase in the EBSD data by using ARPGE. It is found that the microstructures and textures of the prior β grain and the α’ martensites laths are strongly related to the built size. We link the differences of the as-built microstructures to the different thermal history, obtained from the X-ray diffraction data. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |