Achieving ultrahigh strength in CoCrNi-based medium-entropy alloys with synergistic strengthening effect

X Liu, M Zhang, Y Ma, W Dong, R Li, Y Lu… - Materials Science and …, 2020 - Elsevier
… 0.3) alloys, the strength of alloys with single FCC phase in the cast state improved with the
increase of Mo doped, and the strength of … [18] reported a strategy to enhance the strength by …

Achieving ultra-high strength in a precipitation-hardened CoCrNi-based medium-entropy alloy with partially recrystallized microstructure and heterogeneous grains

L Zhang, X Du, L Zhang, W Li, Y Liang, J Yu, N Zou… - Vacuum, 2021 - Elsevier
… [30] designed a CoCrNi-based MEA with heterogeneous grain structure and L1 2 -… and EL
of the alloy are 2.0 GPa and 13%. In the present study, an FCC structured CoCrNi-based MEA …

Hierarchical precipitates facilitate the excellent strength-ductility synergy in a CoCrNi-based medium-entropy alloy

Q Wang, T Zhang, Z Jiao, J Wang, D Zhao, G Wu… - Materials Science and …, 2023 - Elsevier
… The CoCrNiSi 0.3 C 0.048 MEA displays an ultra-high yield strength of 1.34 GPa, …
These findings provide valuable insights into the development of high-performance alloys

Superior cryogenic tensile properties of ultrafine-grained CoCrNi medium-entropy alloy produced by high-pressure torsion and annealing

P Sathiyamoorthi, J Moon, JW Bae, P Asghari-Rad… - Scripta Materialia, 2019 - Elsevier
… combination of strength and ductility. In the present study, ultrafine-grained CoCrNi
medium-entropy alloy with … The alloy exhibits superior cryogenic tensile properties with a tensile …

Heavily twinned CoCrNi medium-entropy alloy with superior strength and crack resistance

X Feng, H Yang, R Fan, W Zhang, F Meng… - Materials Science and …, 2020 - Elsevier
… exhibits an ultra-high strength up to 2.1 … CoCrNi MEA not only exhibits high yield strength,
but also possesses strong crack resistance. The highly distorted DTs provide the extra strength

Ultra-high strength of additively manufactured CoCrNi medium entropy alloy with high-fraction TiC

J Ma, Z Zhang, M Wei, F Jin - Materials Letters, 2024 - Elsevier
… In this work, the novel CoCrNi composite with as high fraction as 5 wt% TiC reinforcements
… spherical CoCrNi powders, instead of blended powders of nano-TiC and CoCrNi powders. …

[HTML][HTML] Achieving ultrahigh strength in oxide-dispersion-strengthened CoCrNi alloy via in situ formation of coherent Y-Ti-O nanoprecipitates

W Mao, L Yang, F Jiang, J He, J Luan, Z Jiao, F Ren - Materials & Design, 2023 - Elsevier
… The ultrahigh strength of coherent ODS CoCrNi alloy is mainly attributed to the ultrafine-…
The Y-ODS CoCrNi alloy shows an ultrahigh yield strength of 1660 MPa, which is 320 MPa …

Tailoring nanoprecipitates to achieve ultrahigh strength (CoCrNi) 94.5 W3Ta2. 5 medium-entropy alloys

JX Chen, T Li, YY Tan, Y Chen, HY Wang… - Materials Science and …, 2024 - Elsevier
… limits service safety of metallic alloys, especially under various harsh circumstances. In this
work, a novel ultra-strong (CoCrNi) 94.5 W 3 Ta 2.5 medium entropy alloy (MEA) with dual …

Precipitation and heterogeneous strengthened CoCrNi-based medium entropy alloy with excellent strength-ductility combination from room to cryogenic temperatures

Y Xie, PC Zhao, YG Tong, JP Tan, BH Sun… - Science China …, 2022 - Springer
… Superior cryogenic tensile properties of ultrafine-grained CoCrNi medium-entropy alloy
pro… lead to ultrahigh strength and uniform ductility in a Co-Cr-Ni mediumentropy alloy. Nat …

Untra-fine-grained equiatomic CoCrNi medium entropy alloys with high density stacking faults and strengthening mechanisms

R Yang, L Yang, T Wang, Q Wang - Materials Science and Engineering: A, 2023 - Elsevier
This study introduces a powder metallurgy route (a combination of mechanical alloying (MA)
and spark plasma sintering) to enhance the mechanical properties of equiatomic CoCrNi