| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development II
|
| Presentation Title |
Additive Manufacturing of Al-10Ce Alloys by Laser Powder Bed Fusion of Gas Atomized Powders |
| Author(s) |
Le Zhou, Holden Hyer, Sharon Park, Thinh Huynh, Brandon McWilliams, Kyu Cho, Yongho Sohn |
| On-Site Speaker (Planned) |
Le Zhou |
| Abstract Scope |
The increasing demand for additive manufacturing (AM) continuously drives the development of AM-specific materials, including novel aluminum (Al) alloys. Cerium (Ce) is known to be beneficial to the corrosion resistance and high temperature strength of Al-alloys. Binary eutectic Al-10Ce alloys were manufactured by laser powder bed fusion (LPBF) using gas-atomized powders. Initial parametric investigation was carried out to determine the optimal parameter that yields near-full density. The phases and microstructural details of the as-cast, powders and as-built Al-10Ce were examined by optical and electron microscopes. The as-built Al-10Ce exhibited fine cellular microstructure due to the fast cooling rate, similar to that in LPBF AlSi10Mg alloys. The presence of fine eutectic Al+Al11Ce3 along the intercellular boundary was confirmed by transmission electron microscope. Various heat treatments were performed on the as-built Al-10Ce alloys and examined through hardness measurements. Tensile properties of the as-built and heat-treated Al-10Ce alloys will be reported. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |