| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Characterization of Minerals, Metals and Materials 2022
|
| Presentation Title |
TEM Characterization of an AS7G06 Alloy with Several Heat Treatments |
| Author(s) |
Nicolas Bello, Cassiopée Galy, Céline Larignon, Joël Douin |
| On-Site Speaker (Planned) |
Nicolas Bello |
| Abstract Scope |
On an AS7G06 alloy elaborated by laser beam melting, transmission electron microscopy observations and thermal analysis experiments have been conducted. Several characterizations were performed on the as-built microstructure and after several heat treatments to understand the phase transformation influence on the mechanical properties of an LBM-Al-Si-Mg alloy.
The 3D Si-cell structure observed in as-built LBM alloys is present and persists after the direct artificial ageing heat treatment. This structure is maintained up to 280°C when heated and exists throughout an ageing treatment at 150°C. Second, all investigated heat treatments lead to a partial precipitation of b’’ responsible for the good mechanical properties of the alloy. To complete this work, a comparison between the tensile mechanical properties of all thermal states and the associated microstructure is presented. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Additive Manufacturing, Phase Transformations |