| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Microstructural and Mechanical Long-term Stability of AM Materials
|
| Presentation Title |
Mechanical Property Retention of Additively Manufactured Al-Ce-Mo Alloy After High Temperature Exposure |
| Author(s) |
Kevin Graydon, Tanner Olson, Amberlee S. Haselhuhn, Yongho Sohn |
| On-Site Speaker (Planned) |
Kevin Graydon |
| Abstract Scope |
A novel Al-Ce-Mo alloy specifically designed for laser powder bed fusion additive manufacturing was examined for tensile and hardness properties after prolonged exposure at 200, 400, and 600 °C for up to 200 hours. Initial experimentation of high temperature exposure at 600 °C for 200 hours in an Ar environment revealed a Vickers hardness decrease from the as built state of 103.8 ± 1.5 to 49.4 ± 0.2. This equated to nearly 50 % hardness retention when exposed to greater than 90 % of its ThermoCalc-predicted melt temperature. Development of phase constituents and microstructure including binary and ternary intermetallic precipitates/dispersoids and coarsening as functions of temperature and time was documented by TEM, SEM, and XRD to correlate the changes in mechanical behavior. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Aluminum |