High-entropy alloys fabricated via powder metallurgy. A critical review

High-entropy alloys (HEAs) have attracted a great deal of interest over the last 14 years. One for this level of interest is related to these alloys breaking the alloying principles that been applied for many centuries. Thus, HEAs usually possess a single phase (contrary to according to the composition of the alloy) and exhibit a high level of in different properties related to many developing areas in industry. Despite significant interest, most HEAs have been developed via ingot metallurgy. More recently, metallurgy (PM) has appeared as an interesting alternative for further developing family of alloys to possibly widen the field of nanostructures in HEAs and improve some of these alloys. In this paper, PM methods applied to HEAs are reviewed, and possible ways to develop the use of powders as raw materials are introduced.