About this Abstract |
Meeting |
2nd World Congress on High Entropy Alloys (HEA 2021)
|
Symposium
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2nd World Congress on High Entropy Alloys (HEA 2021)
|
Presentation Title |
Design of HEAs for Additive Manufacturing Using High-throughput Methods |
Author(s) |
Dan J. Thoma, Alec Mangan, Ankur Agrawal, Behzad Rankouhi, Zahabul Islam |
On-Site Speaker (Planned) |
Dan J. Thoma |
Abstract Scope |
Designing process parameters for a high entropy alloy to be fabricated in laser powder bed fusion will be presented. First, a new dimensionless number with universal scaling capability has been developed and was used to evaluate the Cantor alloy. From the dimensionless number, a test matrix of process parameters was defined, and 200 hexagonal test coupons were fabricated within range of multiple processing parameters. Density and hardness measurements defined the process window, and the processing bounds were compared with theoretical models. The high-throughput method to design the process range takes 16 hours, offering a robust methodology to quickly predict process parameters. Within the defined processing window, microstructural characterizations and mechanical property assessments were used to develop property maps. The best compromise of microstructural, defect, and property control can be predicted from the property maps. The potential to further refine property response and design parameters for new alloys will be discussed. |
Proceedings Inclusion? |
Undecided |