| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing Fatigue and Fracture: Developing Predictive Capabilities
|
| Presentation Title |
On Fatigue Performance of Al-Cu-Mg-Ag-Ti-B Alloy: Additive Manufactured Versus Cast |
| Author(s) |
Maryam Avateffazeli , Md Faysal Khan, Shuai Shao, Nima Shamsaei, Meysam Haghshenas |
| On-Site Speaker (Planned) |
Meysam Haghshenas |
| Abstract Scope |
In this research, the fatigue behavior of a newly developed laser beam powder bed fusion (LB-PBF) fabricated Al-Cu-Mg-Ag-Ti-B alloy, i.e., A205 alloy, was investigated and compared against the cast counter material in the stress relieved and aged conditions (T7 temper). To correlate the fatigue performance and the microstructural features of the studied materials, electron backscattered diffraction, transmission, and scanning electron microscopy measures were also conducted. The in-situ addition of thermally stable nanosized TiB2 particles along with the very high cooling rate produced through the LB-PBF process resulted in an ultrafine, equiaxed, and uniform grain structure of the additive manufactured material (as compared with the cast counter material) leading to superior mechanical properties. The T7 aged thermal treated materials showed superior fatigue performance as compared with the as fabricated and stress relieved samples. Finally, tangible differences were observed between cast and LB-PBF A205 materials in terms of fatigue performance. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Aluminum, Other |