Reconsidering short-range order in complex concentrated alloys

F Walsh, A Abu-Odeh, M Asta - MRS Bulletin, 2023 - Springer
The seemingly contradictory state of research on short-range order in many-component
alloys is addressed through a critical review of the characterization of face-centered-cubic 3 …

FCC-BCC phase transformation induced simultaneous enhancement of tensile strength and ductility at high strain rate in high-entropy alloy

YC Wu, JL Shao - International Journal of Plasticity, 2023 - Elsevier
FCC-BCC phase transformation-induced plasticity (TRIP) has been extensively studied in
high-entropy alloys (HEAs) to customize their mechanical properties through …

Strategies for Achieving Strength–Ductility Synergy in Face‐Centered Cubic High‐and Medium‐Entropy Alloys

D Han, S Cai, W Sun, B Yang… - Advanced Engineering …, 2023 - Wiley Online Library
High‐and medium‐entropy alloys (HEAs/MEAs), also called as multicomponent alloys, are a
new class of materials that break through the traditional alloy design concept based on …

On the origin of diffuse intensities in fcc electron diffraction patterns

FG Coury, C Miller, R Field, M Kaufman - Nature, 2023 - nature.com
Interpreting diffuse intensities in electron diffraction patterns can be challenging in samples
with high atomic-level complexity, as often is the case with multi-principal element alloys. For …

Ubiquitous short-range order in multi-principal element alloys

Y Han, H Chen, Y Sun, J Liu, S Wei, B Xie… - Nature …, 2024 - nature.com
Recent research in multi-principal element alloys (MPEAs) has increasingly focused on the
role of short-range order (SRO) on material performance. However, the mechanisms of SRO …

Plastic deformation of single crystals of the equiatomic Cr-Fe-Co-Ni medium entropy alloy–A comparison with Cr-Mn-Fe-Co-Ni and Cr-Co-Ni alloys

L Li, Z Chen, K Yuge, K Kishida, H Inui… - International Journal of …, 2023 - Elsevier
The plastic deformation behavior of single crystals of the equiatomic Cr-Fe-Co-Ni medium-
entropy alloy was investigated in compression and tension from 9 K to 1373 K. The critical …

Extra electron reflections in concentrated alloys do not necessitate short-range order

F Walsh, M Zhang, RO Ritchie, AM Minor, M Asta - nature materials, 2023 - nature.com
In many concentrated alloys of current interest, the observation of diffuse superlattice
intensities by transmission electron microscopy has been attributed to chemical short-range …

Cooperative deformation mechanisms in a fatigued CoCrNi multi-principal element alloy: A case of low stacking fault energy

K Lu, A Chauhan, D Litvinov, M Schneider… - Journal of the …, 2023 - Elsevier
Multi-principal element alloys (MPEAs) of low stacking fault energies (SFEs) often exhibit
outstanding damage tolerance. In contrast to the well-understood monotonic deformation …

Quantifying chemical short-range order in metallic alloys

K Sheriff, Y Cao, T Smidt… - Proceedings of the …, 2024 - National Acad Sciences
Metallic alloys often form phases—known as solid solutions—in which chemical elements
are spread out on the same crystal lattice in an almost random manner. The tendency of …

Intrinsic factors responsible for brittle versus ductile nature of refractory high-entropy alloys

T Tsuru, S Han, S Matsuura, Z Chen, K Kishida… - Nature …, 2024 - nature.com
Refractory high-entropy alloys (RHEAs) are of interest for ultrahigh-temperature
applications. To overcome their drawbacks—low-temperature brittleness and poor creep …