| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
|
| Presentation Title |
Revealing Intragranular Orientation and Strain Evolution during Additive Manufacturing of a Stainless Steel: A Synchrotron X-ray Diffraction Study |
| Author(s) |
Steve Gaudez, Kouider Abdesselam, Hakim Gharbi, Zoltan Hegedues, Ulrich Lienert, Wolfgang Pantleon, Manas Upadhyay |
| On-Site Speaker (Planned) |
Manas Upadhyay |
| Abstract Scope |
During a metal Additive Manufacturing (AM) process, just after deposition, a material undergoes rapid solidification. Then, until the end of the process, it is subjected to Solid-State Thermal Cycling (SSTC). It is important to study the role of SSTC on the microstructure evolution during AM because the microstructural features affected by SSTC such as texture, internal strains, etc., determine the microstructural response. Recently, we have performed High-Resolution Reciprocal Space Mapping (HRRSM) experiments – a synchrotron-based X-ray diffraction technique - to study the role of SSTC on the evolution of intragranular orientation and strain during AM of a 316L stainless steel. The results show a significant change to the internal structure and strain due to SSTC, which will affect the eventual mechanical properties of the sample being built. The results also indirectly prove that the thermodynamic forces generated during SSTC can significantly alter the dislocation structure in the material. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |