| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Scandium Extraction and Use in Aluminum Alloys
|
| Presentation Title |
Investigating the Influence of Iron Content on the Microstructure and Mechanical Properties of a High Strength Al-alloy for Additive Manufacturing Additive Manufacturing |
| Author(s) |
Matteo Turani, Jannic Walter, Paulo Davi Borges Esteves, Enrico Tosoratti, Adriaan Spierings, Markus Bambach |
| On-Site Speaker (Planned) |
Matteo Turani |
| Abstract Scope |
Scalmalloy, a Sc,Zr-modified Al-alloy tailored for additive manufacturing, shows great promise due to its exceptional strength, low density, and corrosion resistance. This study investigates the influence of Fe, a common impurity in secondary aluminum, on the microstructure, mechanical properties, and sustainability of Scalmalloy processed using Laser Powder Bed Fusion (LPBF).
Three Scalmalloy variants (pristine, 1.5 and 3.5 wt% Fe) were analyzed. Electron microscopy and X-ray diffraction revealed the presence of stable/metastable Fe precipitates and their impact on the precipitation of Sc,Zr-rich primary phases. Mechanical property evaluations demonstrated increased tensile strength and hardness, albeit with reduced ductility, as Fe content increased. Furthermore, compression tests at elevated temperatures showcased the alloy thermal stability. In conclusion, this study explores the feasibility of processing Fe-contaminated aluminum feedstock through LPBF, promoting resource efficiency and reduced environmental impact. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Additive Manufacturing, Aluminum, Recycling and Secondary Recovery |