| Abstract Scope |
Alloy design of advanced materials requires a systematic evaluation of compositional and microstructural space during synthesis to optimize properties. To accelerate the alloy design process, high-throughput additive manufacturing (AM) methods have been developed. Firstly, directed energy deposition (DED) methods permit flexibility in compositional control by controlling the deposition rate of individual metal powders from up to 4 powder hoppers. Two example systems will be highlighted: 1) high entropy alloys (HEAs), and 2) bulk metallic glasses (BMGs). Refractory HEAs have been produced from elemental powders within 5 at.% of the desired composition, and up to 100 samples (a centimeter cube) can be fabricated per day. Similarly, 1 mm diameter “dots” of Mg-based BMGs can be fabricated with over 2000 samples per day. Secondly, selective laser melting (SLM) methods permit HT microstructural control to refine the mechanical response of the alloys. Examples on various alloys will be characterized. |