About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
Designing Aluminium Alloys for LPBF: Tailoring Microstructure and Performance with Transition Elements |
| Author(s) |
Alberto Orozco-Caballero, Farid Bahari-Sambran, Fernando Carreño, Carmen M. Cepeda-Jiménez |
| On-Site Speaker (Planned) |
Alberto Orozco-Caballero |
| Abstract Scope |
Laser Powder Bed Fusion (L-PBF) is a metal additive manufacturing (AM) technique capable of producing complex and intricate geometries. However, conventional high-strength wrought aluminium alloys (e.g., 7xxx and 2xxx series) are not suitable for L-PBF due to hot cracking and volatile alloying elements. Recent research has focused on developing new Al alloys specifically for AM by incorporating transition elements such as Fe, Cr, Ti, and others, as Si. These elements offer low solubility and diffusion in Al, promoting intermetallic formation, high-temperature stability, and reduced post-processing needs. This work presents recent developments in AlFeCrTi and AlFeCrSi alloys tailored for L-PBF. While the Ti-containing alloy produces fine equiaxed grains, the Si-containing variant exhibits a columnar microstructure. These differences influence local strain distribution, analysed using high-resolution digital image correlation (HR-DIC). The findings provide key insights into alloy design strategies for enhancing mechanical performance in AM-processed aluminium systems. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Additive Manufacturing, Aluminum, Characterization |