|About this Abstract
||1st World Congress on High Entropy Alloys (HEA 2019)
||High Entropy Alloys 2019
||Additive Manufacturing of High Entropy and Compositionally Complex Alloys
||Joerg Kaspar, Martina Zimmermann, Liliana Kotte, Martin Kuczyk, Lukas Stepien, Christoph Leyens
|On-Site Speaker (Planned)
Recent research work on HEA and CCA is related to material primarily processed by the melting & casting route. Since alloy synthesis is very complex and in most cases very costly, additive manufacturing (AM) offers new perspectives by allowing to deposit the costly material solely where the favorable properties are needed, thus paving the way for HEA and CCA utilization on an industrial scale. The present contribution demonstrates the potential of different kinds of AM (laser metal deposition, fused filament fabrication, binder jetting) to synthesize transition metal and refractory type HEAs. One major objective is to explore how the synthesis route influences the structure and properties, demonstrated for CrMnFeCoNi in the as-cladded and the heat treated condition. For single phase bcc TiZrNbHfTa and two-phase AlxCrMnFeCoNi it is shown that laser metal deposition is capable of generating crack free coatings with high chemical homogeneity and without macroscopic segregations, exhibiting high hardness.