Tailoring the strengthening mechanisms of high-entropy alloys toward excellent strength-ductility synergy by metalloid silicon alloying: A review

MJ Sohrabi, A Kalhor, H Mirzadeh, K Rodak… - Progress in Materials …, 2024 - Elsevier
Metalloids and transition/refractory elements typically differ significantly in the electronic
structure and atomic size, allowing for stronger solid-solution hardening in high-entropy …

[HTML][HTML] Recent progress in the CoCrNi alloy system

S Bajpai, BE MacDonald, TJ Rupert, H Hahn… - Materialia, 2022 - Elsevier
The exceptional mechanical properties, particularly at cryogenic temperatures, of the
equiatomic CoCrNi alloy are documented in numerous published studies. Similar to the …

Analysis of strengthening due to grain boundaries and annealing twin boundaries in the CrCoNi medium-entropy alloy

M Schneider, EP George, TJ Manescau… - International Journal of …, 2020 - Elsevier
CrCoNi exhibits the best combination of strength and ductility among all the equiatomic
single-phase FCC subsets of the CrMnFeCoNi high-entropy alloy. Here, its yield strength …

Uncovering the eutectics design by machine learning in the Al–Co–Cr–Fe–Ni high entropy system

Q Wu, Z Wang, X Hu, T Zheng, Z Yang, F He, J Li… - Acta Materialia, 2020 - Elsevier
Eutectics in high entropy alloys (HEAs) have shown excellent properties and promising
applications. With empirical rules, various of eutectic high entropy alloys (EHEAs) have been …

Synergistic effects of Mo and in-situ TiC on the microstructure and wear resistance of AlCoCrFeNi high entropy alloy fabricated by laser cladding

W Zhao, K Yu, Q Ma, C Song, G Xiao, H Zhang, Y Lv… - Tribology …, 2023 - Elsevier
The AlCoCrFeNi high entropy alloy coatings reinforced by the high melting point element Mo
and in-situ TiC were fabricated by using laser cladding. The BCC phase existed in all the …

Strengthening of CoCrNi medium entropy alloy with gadolinium additions

YS Lin, YC Lu, CH Hsueh - Vacuum, 2023 - Elsevier
Abstract A series of (CoCrNi) 100–x Gd x (x= 0/0.1/0.3/0.5/1.0) medium entropy alloys
(MEAs) was fabricated by high-vacuum arc melting. The effects of rare-earth element, Gd …

Microstructure and mechanical properties of CoCrNi-Mo medium entropy alloys: experiments and first-principle calculations

R Chang, W Fang, J Yan, H Yu, X Bai, J Li… - Journal of Materials …, 2021 - Elsevier
The effect of Mo additions on the microstructures and mechanical properties of CoCrNi
alloys was investigated, meanwhile, ab initio calculations are performed to quantitatively …

Heterogeneous banded precipitation of (CoCrNi) 93Mo7 medium entropy alloys towards strength–ductility synergy utilizing compositional inhomogeneity

R Chang, W Fang, H Yu, X Bai, X Zhang, B Liu, F Yin - Scripta Materialia, 2019 - Elsevier
Compositional inhomogeneity of the Mo element in a (CoCrNi) 93 Mo 7 alloy is utilized to
obtain a heterogeneous structure with the banded precipitation, which improves the strength …

Achieving excellent strength-ductility synergy in twinned NiCoCr medium-entropy alloy via Al/Ta co-doping

DD Zhang, H Wang, JY Zhang, H Xue, G Liu… - Journal of Materials …, 2021 - Elsevier
Alloying is an effective strategy to tailor microstructure and mechanical properties of metallic
materials to overcome the strength-ductility trade-off dilemma. In this work, we combined a …

Enhanced strength-ductility synergy in a Ta-doped CoCrNi medium-entropy alloy with a dual heterogeneous structure

D Xu, H Zhang, M Wang, Y Lu, X Chen… - Materials Science and …, 2022 - Elsevier
The CoCrNi medium-entropy alloy (MEA) has attracted much attention owing to its promising
comprehensive properties. However, the low yield strength of the CoCrNi alloy at room …