| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Fatigue in Materials: Fundamentals, Multiscale Characterizations and Computational Modeling
|
| Presentation Title |
Low Cycle Fatigue Behavior of an Optimally Produced
Additive Manufactured Aluminum Alloy |
| Author(s) |
Emine Tekerek, Vignesh Perumal, Darren Beckett, Scott Halliday, Antonios Kontsos |
| On-Site Speaker (Planned) |
Emine Tekerek |
| Abstract Scope |
The mechanical behavior of AM metals depends on their microstructures which are affected by the melt-pool geometry in laser-based methods. Such melt pool effects are defined by the used laser properties including speed and power. In this context, this talk focuses on exploring linkages between microstructures produced by the rapid AM solidification process and the low-cyclic fatigue behavior of a common AM aluminum alloy. Thermomechanical simulations are first used to define geometries which have been optimized for thermal effects. In addition, melt pool measurements are performed to establish a correlation between print parameters and manufacturing conditions. To investigate the fatigue behavior, cyclic loading inside the Scanning Electron Microscope coupled with in situ Digital Image Correlation, Acoustic Emission and microscopic investigation is used to investigate the specific role of porosity and second-phase particles. The results are coupled with solidification studies at the TEM level, as well as micro-computer tomography data. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Aluminum, Additive Manufacturing |