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 …

[HTML][HTML] A critical review of the mechanical properties of CoCrNi-based medium-entropy alloys

D Xu, M Wang, T Li, X Wei, Y Lu - Microstructures, 2022 - oaepublish.com
The CoCrFeMnNi alloy is one of the most notable first-generation high-entropy alloys and is
also known as a Cantor alloy. This alloy was first proposed in 2004 and shows promising …

Revealing the deformation mechanisms of< 110> symmetric tilt grain boundaries in CoCrNi medium-entropy alloy

D Hua, Q Zhou, Y Shi, S Li, K Hua, H Wang, S Li… - International Journal of …, 2023 - Elsevier
The synergy of multiple deformation mechanisms responsible for the excellent mechanical
properties attracts an increasing interest in CoCrNi medium entropy alloy (MEA). In this …

Superior strength-ductility synergy and strain hardenability of Al/Ta co-doped NiCoCr twinned medium entropy alloy for cryogenic applications

DD Zhang, JY Zhang, J Kuang, G Liu, J Sun - Acta Materialia, 2021 - Elsevier
Metallic materials with outstanding cryogenic mechanical properties are highly demanded
for cryogenic engineering applications. Here we developed a novel (NiCoCr) 92 Al 6 Ta 2 …

Strengthening in multi-principal element alloys with local-chemical-order roughened dislocation pathways

QJ Li, H Sheng, E Ma - Nature communications, 2019 - nature.com
High-entropy and medium-entropy alloys are presumed to have a configurational entropy as
high as that of an ideally mixed solid solution (SS) of multiple elements in near-equal …

Effects of lattice distortion and chemical short-range order on the mechanisms of deformation in medium entropy alloy CoCrNi

WR Jian, Z **e, S Xu, Y Su, X Yao, IJ Beyerlein - Acta Materialia, 2020 - Elsevier
As the numbers of medium-to high-entropy alloys being studied and impressive structural
properties they exhibit increase rapidly, questions regarding the role played by their …

Exceptional strength-ductility synergy at room and liquid nitrogen temperatures of Al7. 5Co20. 5Fe24Ni24Cr24 high-entropy alloy with hierarchical precipitate …

C Chu, W Chen, L Huang, H Wang, L Chen… - International Journal of …, 2024 - Elsevier
The study of alloys exhibiting noteworthy strength-ductility synergy at ambient and cryogenic
temperatures has been a persistent area of interest in materials engineering. This interest …

Yield strength and misfit volumes of NiCoCr and implications for short-range-order

B Yin, S Yoshida, N Tsuji, WA Curtin - Nature communications, 2020 - nature.com
The face-centered cubic medium-entropy alloy NiCoCr has received considerable attention
for its good mechanical properties, uncertain stacking fault energy, etc, some of which have …

[HTML][HTML] Effects of temperature on mechanical properties and deformation mechanisms of the equiatomic CrFeNi medium-entropy alloy

M Schneider, G Laplanche - Acta Materialia, 2021 - Elsevier
An equiatomic CrFeNi medium-entropy alloy (MEA) that constitutes a cornerstone of
austenitic stainless steels and Fe-based superalloys is investigated. Anneals at various …

Vanadium is an optimal element for strengthening in both fcc and bcc high-entropy alloys

B Yin, F Maresca, WA Curtin - Acta Materialia, 2020 - Elsevier
The element Vanadium (V) appears unique among alloying elements for providing high
strengthening in both the fcc Co-Cr-Fe-Mn-Ni-V and bcc Cr-Mo-Nb-Ta-VW-Hf-Ti-Zr high …