| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
| Presentation Title |
Rapid Experimental Validation of Printable High-Temperature Al-Alloys Using Laser-Scanning Strategies |
| Author(s) |
Benjamin M. Glaser, S. Mohadeseh Taheri-Mousavi |
| On-Site Speaker (Planned) |
Benjamin M. Glaser |
| Abstract Scope |
Printable high-temperature aluminum alloys can be used in industries such as automotive, provided that their cost and sustainability metrics match the requirements of large-scale production. We recently designed a high-temperature printable alloy from the Al-Ni-Er-Zr-Y-Yb system with superior strength to cast Al7075 at ambient and elevated temperatures. Using various unsupervised machine learning and CALPHAD-based ICME techniques, we discovered a candidate alloy with 30 percent cost and emissions savings and 90 percent retention of strength versus this baseline. On this design, a rapid experimental framework was used to validate the alloy performance, with samples prepared by arc melting, then laser scanned in the LPBF chamber to mimic rapid solidification in printing. We will discuss the characterized microstructure via SEM and TEM to validate phase development versus simulation predictions in different aging conditions. We will show how mechanical performance will be compared to the baseline design and other alloys in literature. |