Dr. Isaac Toda-Caraballo: Department of Materials Science and Metallurgy. University of Cambridge (UK) Within the last two decades, a new type of material has been increasingly explored. Widely known as High Entropy Alloys (HEAs), they contrast with most of the existing metallic materials in which they do not contain a major element, such as steels, aluminium alloys or magnesium alloys. Their original definition assumes 5 or more different elements, with composition between 5% and 35% of atomic content, displaying a…