High entropy alloys: A focused review of mechanical properties and deformation mechanisms

EP George, WA Curtin, CC Tasan - Acta Materialia, 2020 - Elsevier
The high-entropy alloy (HEA) concept was based on the idea that high mixing entropy can
promote formation of stable single-phase microstructures. During the past 15 years, various …

Phase engineering of high‐entropy alloys

X Chang, M Zeng, K Liu, L Fu - Advanced Materials, 2020 - Wiley Online Library
High‐entropy alloys (HEAs) are based on five or more principal elements with equal or
nearly equal molar fractions and possess many significant advantages over traditional …

Mechanical instability and tensile properties of TiZrHfNbTa high entropy alloy at cryogenic temperatures

S Wang, M Wu, D Shu, G Zhu, D Wang, B Sun - Acta Materialia, 2020 - Elsevier
The equiatomic TiZrHfNbTa alloy is one of the few refractory high entropy alloys that exhibit
tensile ductility at room temperature, the deformation of which is only dominated by …

Recent progresses on designing and manufacturing of bulk refractory alloys with high performances based on controlling interfaces

T Zhang, HW Deng, ZM Xie, R Liu, JF Yang… - Journal of Materials …, 2020 - Elsevier
Refractory alloys such as tungsten and molybdenum based alloys with high strength,
thermal/electrical conductivity, low coefficient of thermal expansion and excellent creep …

Ultrahigh hardness with exceptional thermal stability of a nanocrystalline CoCrFeNiMn high-entropy alloy prepared by inert gas condensation

J Wang, S Wu, S Fu, S Liu, M Yan, Q Lai, S Lan… - Scripta Materialia, 2020 - Elsevier
Abstract (CoCrFeNi) 93.5 Mn 6.5 nanocrystalline high-entropy alloy (nc-HEA) with an
average grain size of 25 nm was prepared by inert gas condensation (IGC) using a laser …

Elemental Core Level Shift in High Entropy Alloy Nanoparticles via X-ray Photoelectron Spectroscopy Analysis and First-Principles Calculation

X Xu, Y Guo, BP Bloom, J Wei, H Li, H Li, Y Du… - ACS …, 2020 - ACS Publications
High entropy alloy nanoparticles (HEA-NPs) are expanding their influence in many fields. To
explore the electronic structures in such multielemental systems, HEA-NPs were …

Metastability in high entropy alloys

SA Kube, J Schroers - Scripta Materialia, 2020 - Elsevier
The high entropy effect is often insufficient to fully stabilize single-phase solid solutions
(SPSS), yielding only few, mostly metastable SPSS. While the prospective space of …

Laser metal deposition of refractory high-entropy alloys for high-throughput synthesis and structure-property characterization

H Dobbelstein, EP George, EL Gurevich… - … Journal of Extreme …, 2020 - iopscience.iop.org
Progress in materials development is often paced by the time required to produce and
evaluate a large number of alloys with different chemical compositions. This applies …

Nanostructured high-entropy materials

MJR Haché, C Cheng, Y Zou - Journal of Materials Research, 2020 - cambridge.org
In the past decade, the emergence of high-entropy alloys (HEAs) and other high-entropy
materials (HEMs) has brought about new opportunities in the development of novel …

Ductile and brittle crack-tip response in equimolar refractory high-entropy alloys

X Li, W Li, DL Irving, LK Varga, L Vitos, S Schönecker - Acta Materialia, 2020 - Elsevier
Understanding the strengthening and deformation mechanisms in refractory high-entropy
alloys (HEAs), proposed as new high-temperature material, is required for improving their …