Title : High Entropy Alloys for Additive Manufacturing
High entropy alloys are a new class of promising materials based on the innovative notion of alloying, which is based on the use of numerous primary components in high concentrations (HEAs). So far, numerous HEAs have been identified with qualities that are superior to those of normal alloys, and additional superior high-entropy alloys are likely to be created in the future. However, due to the fundamental needs of HEAs, the production process of HEAs using standard manufacturing processes has considerable constraints. In contrast, additive manufacturing (AM) has opened up new possibilities for creating geometrically complicated HEAs with the ability to adjust their in-situ microstructure characteristics.
What will audience learn from your presentation?
- This presentation provide the state of the art in AM of HEAs, in light of the increased interest in AM of HEAs in recent years. It explains the feedstock requirements for laser-based additive manufacturing processes. The current situation of practically all HEAs treated by laser metal deposition (LMD), selective laser melting (SLM), and selective electron beam melting (SEBM) is then described.
- The characteristics of AM-derived microstructures, as well as their exceptional attributes and underlying processes for diverse material processing combinations, are given special emphasis.
- The post-AM treatments as well as the fabrication procedures for defect-free HEAs are summarised. Finally, a conclusion will be offered on the existing state and future possibilities of additive manufacture of HEAs.