About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
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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 |