| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Length-Scale Phenomena in Mechanical Response
|
| Presentation Title |
A Novel Continuous-wave Laser and SEM Coupling: Application to Engineer an Additively Manufactured Microstructure |
| Author(s) |
Juan Guillermo Santos Macias, Alexandre Tanguy, Manas Upadhyay |
| On-Site Speaker (Planned) |
Juan Guillermo Santos Macias |
| Abstract Scope |
We have developed a novel and unique coupling between a continuous-wave laser and an environmental-SEM. This novel device can help identify in-process/post-process laser treatments that can be performed inside an AM chamber in order to improve the surface quality and mechanical response of parts. Ultimately, it can even shed light into the microstructural changes induced due to solid state thermal cycling during AM.
In this talk this unique device is first introduced. Then, the results of a series of laser scanning tests are presented, followed by the results of tensile and fatigue testing of a laser-scanned AM 316L steel microstructure. Through EBSD and other microscopy techniques, texture, grain morphology, dislocation density and strain changes are analysed. The results show that the laser scanning has improved the mechanical response of the as built material. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |