Paper about high-entropy alloys acknowledged as Editors’ Choice

May 29, 2020

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.

Dr. Subin Lee is the first author of a recently published paper about highly entropy alloys, which was awarded by the journal Materials Research Letters as Editors' Choice.

“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.

1.
S. Lee, M. J. Duarte, M. Feuerbacher, R. Soler, C. Kirchlechner, C. H. Liebscher, S. H. Oh, G. Dehm:
Dislocation plasticity in FeCoCrMnNi high-entropy alloy: quantitative insights from in situ transmission electron microscopy deformation.
In: Materials Research Letters 8, 6 (2020) 216.
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