Superior cryogenic strength and ductility in VNbTa body-centered cubic medium-entropy alloys

Z Han, G Yang, J Yang, Y Tian, J Cui, A Tian… - Materials …, 2023 - Elsevier
In this study, the deformation behavior of an equiatomic VNbTa medium-entropy alloy with a
BCC single phase is studied by tensile tests at cryogenic temperatures. The results show …

Annealing-induced abnormally ultrahigh cryogenic strength-ductility synergy in a cold rolled ferrous medium entropy alloy

Z Han, J Li, Y Tian, A Tian, A Sun, R Wei, G Liu - Intermetallics, 2023 - Elsevier
Using cold rolling and low temperature annealing, a Fe 65 Ni 15 Cr 10 Co 10 medium
entropy alloy (MEA) with a heterogeneous microstructure was presented. The cold rolled …

Achieving ultra-high mechanical properties in metastable Co-free medium entropy alloy via hierarchically heterogeneous microstructure

Q Gao, X Zhang, S Feng, Z Han, C Chen… - Journal of Materials …, 2024 - Elsevier
A new metastable dual-phase Fe 59 Cr 13 Ni 18 Al 10 medium entropy alloy (MEA) with
hierarchically heterogeneous microstructure from micro-to nano-scale was designed in this …

Comparative study of tensile properties and impact toughness of duplex lightweight steel

J Yang, HW Lee, TM Park, S Lee, J Han - Materials Science and …, 2024 - Elsevier
Herein, a comparative study regarding the tensile properties and impact toughness of
duplex lightweight steel and its deformation behavior was conducted to broaden its …

Effect of thermo-mechanical treatment on cryogenic mechanical properties of a medium-entropy Fe65Co12. 5Ni12. 5Cr9. 5C0. 5 alloy produced by the laser-based …

E Povolyaeva, I Astakhov, D Shaysultanov… - Materials Science and …, 2024 - Elsevier
Microstructure and mechanical properties of the Fe 65 Co 12.5 Ni 12.5 Cr 9.5 C 0.5 (in at.%)
medium-entropy alloy obtained by the laser-based powder bed fusion (PBF-LB) was …

Wear-induced microstructural evolution in CoCrNi-based high-entropy alloys at cryogenic temperature

Y Geng, J Liu, J Cheng, H Tan, S Zhu, Y Yang… - Materials Science and …, 2024 - Elsevier
Elucidating the tribological behaviors of CoCrNi-based high-entropy alloys (HEAs) at
cryogenic temperatures is crucial for their practical application. This work uncovers the …

Ultrastrong and ductile metastable Fe-rich medium-entropy alloy with high-density nanolamellar L12 precipitates

S Wang, J Wang, Y Sun, Z Yang, G Sha, Z Jiao… - Scripta Materialia, 2024 - Elsevier
An Fe-rich medium entropy alloy (MEA) with a composition of Fe 41.9 Ni 34.4 Co 11.3 Cr 2.3
Al 6.9 Ti 3.2 (at.%) has been successfully developed by utilizing transformation-induced …

[HTML][HTML] Realizing ultra-high strength and excellent ductility in a low-alloyed biomedical Mg-Zn-Ca-MgO composite

C Tang, S Lyu, R Zheng, G Li, Z Liu, M Chen… - Journal of Magnesium …, 2024 - Elsevier
An ultra-fine grained (UFG) Mg-1Zn-0.2 Ca-1.0 MgO composite with an average grain size of
0.49 µm as well as an excellent combination of yield strength (379 MPa) and ductility …

A novel low-cost medium entropy alloys with excellent mechanical properties via multiple strengthening mechanisms

N Li, S Feng, S Sun, R Wei - Intermetallics, 2024 - Elsevier
The microstructure and tensile mechanical properties of novel FeNiCrAl x Ti y medium-
entropy alloys (MEAs) were investigated. The results showed that the microstructure of the …

Strengthening metastable dual-phase Fe60Cr15Ni16Al9 complex concentrated alloy at cryogenic temperature by doping Ti and Mo

S Feng, X Zhang, R Wei, Q Gao, C Chen, T Wang… - Intermetallics, 2023 - Elsevier
The Fe-based complex concentrated alloys (Fe–CCAs) show great potential for advanced
structural materials due to their vast alloy compositional spaces, outstanding mechanical …