A strong and ductile NiCoCr-based medium-entropy alloy strengthened by coherent nanoparticles with superb thermal-stability

DD Zhang, J Kuang, H Xue, JY Zhang, G Liu… - Journal of Materials …, 2023 - Elsevier
In this work, we designed a novel NiCoCr-based medium-entropy alloy (MEA) strengthened
by coherent L1 2-nanoparticles, ie,(NiCoCr) 92 Al 6 Ta 2 (at.%). The strengthening and …

Synergistic strengthening of heterogeneous structures and dual-morphology nano-precipitates in Co1. 5CrNi1. 5Al0. 2Ti0. 1V0. 1 medium-entropy alloy

X Fan, R Li, X Liu, Q Liu, X Tong, A Li, S Xu… - Materials Science and …, 2022 - Elsevier
In this paper, we designed a novel non-equiatomic medium-entropy alloy (MEA) with
heterogeneous grain structures (HGS) and dual-morphology L1 2 nano-precipitates through …

Nano-precipitates strengthened non-equiatomic medium-entropy alloy with outstanding tensile properties

W Lu, X Luo, Y Yang, K Yan, B Huang, P Li - Materials Science and …, 2020 - Elsevier
In this work, a novel non-equiamotic Ni 46 Cr 23 Co 23 Al 4 Ti 4 medium-entropy alloy
(MEA) strengthened by nanoscale coherent γ′ particles with L1 2 superlattice was …

Heterogeneous precipitation behavior and stacking-fault-mediated deformation in a CoCrNi-based medium-entropy alloy

YL Zhao, T Yang, Y Tong, J Wang, JH Luan, ZB Jiao… - Acta Materialia, 2017 - Elsevier
Combining high strength and good ductility is highly-desired yet challenging for
conventional structural materials. Newly emerging concentrated multi-component alloys with …

Exceptional nanostructure stability and its origins in the CoCrNi-based precipitation-strengthened medium-entropy alloy

Y Zhao, T Yang, B Han, J Luan, D Chen… - Materials Research …, 2019 - Taylor & Francis
The thermal stability of second-phase nanoparticles plays a critical role in determining the
applicability and durability of precipitation-hardened alloys for engineering applications at …

Enhanced tensile properties by heterogeneous grain structures and coherent precipitates in a CoCrNi-based medium entropy alloy

Z Zhang, P Jiang, F Yuan, X Wu - Materials Science and Engineering: A, 2022 - Elsevier
A dual heterogeneous structure with both heterogeneous grain structure and coherent L1 2
nanoprecipitates was obtained in a CoCrNi-based medium entropy alloy (MEA) with …

Heterogeneous precipitates facilitate excellent mechanical properties in non-equiatomic medium-entropy alloy

W Lu, X Luo, Y Yang, B Huang, P Li - Intermetallics, 2021 - Elsevier
In this work, a novel non-equiamotic Ni 47.5 Cr 23.75 Co 23.75 Ti 5 medium-entropy alloy
strengthened by heterogeneous precipitates was successfully fabricated. Our results …

Enhancing the strength-ductility trade-off in a NiCoCr-based medium-entropy alloy with the synergetic effect of ultra fine precipitates, stacking faults, dislocation locks …

L Zhang, Z Hu, L Zhang, H Wang, J Li, Z Li, J Yu, B Wu - Scripta Materialia, 2022 - Elsevier
In this work, multi strengthening/deformation mechanisms were introduced into a Ni-rich Ni
40 Co 32 Cr 20 Al 3.5 Ti 3 Nb 1.5 (at%) medium-entropy alloy. After thermo-mechanical …

Superior strength-ductility synergy in a novel tailored nanoparticles-strengthened medium-entropy alloy

H Peng, I Baker, L Hu, L Li - Scripta Materialia, 2022 - Elsevier
Abstracts A novel fcc (CoCrNi) 94 Al 3 Ti 3 medium-entropy alloy strengthened with an L1 2
phase was designed using CALPHAD. Hot rolling, cold rolling, and heat treatment were …

Tailoring microstructures and tensile properties of a precipitation-strengthened (FeCoNi) 94Ti6 medium-entropy alloy

Y Chen, HW Deng, ZM Xie, MM Wang, JF Yang… - Journal of Alloys and …, 2020 - Elsevier
The coherent precipitate L1 2-type Ni 3 Ti nanoclusters and nano-sized particles in a fcc-
FeCoNi medium-entropy alloy (MEA) matrix were designed and realized through minor Ti …