Short-range order and its impact on the CrCoNi medium-entropy alloy

R Zhang, S Zhao, J Ding, Y Chong, T Jia, C Ophus… - Nature, 2020 - nature.com
Traditional metallic alloys are mixtures of elements in which the atoms of minority species
tend to be distributed randomly if they are below their solubility limit, or to form secondary …

Tuning element distribution, structure and properties by composition in high-entropy alloys

Q Ding, Y Zhang, X Chen, X Fu, D Chen, S Chen, L Gu… - Nature, 2019 - nature.com
High-entropy alloys are a class of materials that contain five or more elements in near-
equiatomic proportions,. Their unconventional compositions and chemical structures hold …

Data-driven electron-diffraction approach reveals local short-range ordering in CrCoNi with ordering effects

HW Hsiao, R Feng, H Ni, K An, JD Poplawsky… - Nature …, 2022 - nature.com
The exceptional mechanical strength of medium/high-entropy alloys has been attributed to
hardening in random solid solutions. Here, we evidence non-random chemical mixing in a …

Direct observation of chemical short-range order in a medium-entropy alloy

X Chen, Q Wang, Z Cheng, M Zhu, H Zhou, P Jiang… - Nature, 2021 - nature.com
Complex concentrated solutions of multiple principal elements are being widely investigated
as high-or medium-entropy alloys (HEAs or MEAs),,,,,,,,,–, often assuming that these …

Stacking fault driven phase transformation in CrCoNi medium entropy alloy

H He, M Naeem, F Zhang, Y Zhao, S Harjo… - Nano …, 2021 - ACS Publications
Phase transformation is an effective means to increase the ductility of a material. However,
even for a commonly observed face-centered-cubic to hexagonal-close-packed (fcc-to-hcp) …

A fracture-resistant high-entropy alloy for cryogenic applications

B Gludovatz, A Hohenwarter, D Catoor, EH Chang… - Science, 2014 - science.org
High-entropy alloys are equiatomic, multi-element systems that can crystallize as a single
phase, despite containing multiple elements with different crystal structures. A rationale for …

Exceptional damage-tolerance of a medium-entropy alloy CrCoNi at cryogenic temperatures

B Gludovatz, A Hohenwarter, KVS Thurston… - Nature …, 2016 - nature.com
High-entropy alloys are an intriguing new class of metallic materials that derive their
properties from being multi-element systems that can crystallize as a single phase, despite …

Exceptional fracture toughness of CrCoNi-based medium-and high-entropy alloys at 20 kelvin

D Liu, Q Yu, S Kabra, M Jiang, P Forna-Kreutzer… - Science, 2022 - science.org
CrCoNi-based medium-and high-entropy alloys display outstanding damage tolerance,
especially at cryogenic temperatures. In this study, we examined the fracture toughness …

Real-time nanoscale observation of deformation mechanisms in CrCoNi-based medium-to high-entropy alloys at cryogenic temperatures

Q Ding, X Fu, D Chen, H Bei, B Gludovatz, J Li… - Materials Today, 2019 - Elsevier
Technologically important mechanical properties of engineering materials often degrade at
low temperatures. One class of materials that defy this trend are CrCoNi-based medium-and …

Real-time observations of TRIP-induced ultrahigh strain hardening in a dual-phase CrMnFeCoNi high-entropy alloy

S Chen, HS Oh, B Gludovatz, SJ Kim, ES Park… - Nature …, 2020 - nature.com
Strategies involving metastable phases have been the basis of the design of numerous
alloys, yet research on metastable high-entropy alloys is still in its infancy. In dual-phase …