Paper about high-entropy alloys acknowledged as Editors’ Choice

High-entropy alloys are known for their high ductility and fracture toughness. However, why do they show those outstanding mechanical properties? Dr. Subin Lee from the department “Structure and Nano-/ Micromechanics of Materials” and his colleagues might have found the answer. Their paper “Dislocation plasticity in FeCoCrMnNi high-entropy alloy: quantitative insights from in situ transmission electron microscopy deformation” was now awarded as Editors’ Choice by the journal Materials Research Letters.

“We analysed the so-called Cantor alloy, which is an alloy made of iron, cobalt, chromium, manganese and nickel in equal proportions. It is known that the high strength is a result of deformation twinning. Now we were able to directly measure the shear stress to glide dislocations in high-entropy alloys by deforming the samples in situ in a transmission electron microscope”, explains Lee, who is first author of the recently published paper.

Editors’ Choice papers are selected by the Editor-in-Chief according to their likeliness to be of high interest for the respective community.