High entropy alloys and methods for synthesis

Abstract

High entropy alloys (HEA) are now a well-known group of materials, which has been studied intensely in the past decade. Due to the high complexity of the various HEA structures and the wide compositional spectrum, the research in the field continues with important discoveries and high work volume. Numerous articles presented various modalities to describe the thermodynamics and atomic arrangement in HEA structures and develop specific criteria for the selection of compositions with predicted solid solution structures. The next step towards the industrial use of the new category of alloys needs to be taken and implies the necessity to describe the implications of methods for alloy synthesis, as the structures obtained would be the closest to the theoretically assumed equilibrium. A succinct review of the methods and results were presented in the article.