Seventy years of Hall-Petch, ninety years of superplasticity and a generalized approach to the effect of grain size on flow stress

RB Figueiredo, M Kawasaki, TG Langdon - Progress in Materials Science, 2023 - Elsevier
The grain size, and therefore the grain boundary density, is known to play a major role in the
flow stress of metallic materials. A linear relationship to the inverse of the square root of the …

Mechanical behavior of high-entropy alloys

W Li, D Xie, D Li, Y Zhang, Y Gao, PK Liaw - Progress in Materials Science, 2021 - Elsevier
Research in the field of high-entropy alloys has been surging since the 2010s. As widely
acknowledged, research interests in this field are largely sparked by the enormous …

On the enhanced wear resistance of CoCrFeMnNi high entropy alloy at intermediate temperature

J Joseph, N Haghdadi, M Annasamy, S Kada… - Scripta Materialia, 2020 - Elsevier
Sigma (σ) phase precipitation was observed in the recrystallized wear subsurface of a face
centred cubic CoCrFeMnNi high entropy alloy after sliding wear at intermediate …

Nanoindentation into a high-entropy alloy–An atomistic study

IA Alhafez, CJ Ruestes, EM Bringa… - Journal of Alloys and …, 2019 - Elsevier
The plastic response of a high-entropy alloy is explored by means of simulated
nanoindentation tests. We compare nanoindentation into the Cantor alloy–an equi-atomic …

[HTML][HTML] Recent advances in nanomechanical and in situ testing techniques: Towards extreme conditions

D Kiener, M Wurmshuber, M Alfreider… - Current Opinion in Solid …, 2023 - Elsevier
Nanoindentation based techniques were significantly enhanced by continuous stiffness
monitoring capabilities. In essence, this allowed to expand from point-wise discrete …

[HTML][HTML] Ultra-strong nanostructured CrMnFeCoNi high entropy alloys

LL Xiao, ZQ Zheng, SW Guo, P Huang, F Wang - Materials & Design, 2020 - Elsevier
Equiatomic CrMnFeCoNi high-entropy alloy (HEA) known as Cantor alloy was extensively
studied because of intriguing mechanical properties and fracture toughness. However, the …

Metallurgical aspects of high entropy alloys

SS Nene, S Sinha, DK Yadav, A Dutta - Journal of Alloys and Compounds, 2024 - Elsevier
Alloying traditionally enhances material properties by adding small amounts of secondary
elements to a primary base. Over the past decade and a half, a revolutionary strategy has …

[HTML][HTML] Effect of grain size on strength and strain rate sensitivity in the CrMnFeCoNi high-entropy alloy

RB Figueiredo, W Wolf, TG Langdon - Journal of Materials Research and …, 2022 - Elsevier
It was shown recently that the grain size contribution to the flow stress and strain rate
sensitivity of pure metals having different structures can be estimated by a model of …

Influence of plastic deformation on the corrosion behavior of CrCoFeMnNi high entropy alloy

Y Wang, J Jin, M Zhang, F Liu, X Wang, P Gong… - Journal of Alloys and …, 2022 - Elsevier
In this research, the influence of plastic deformation on the corrosion behaviors of
CrCoFeMnNi high entropy alloy were comprehensively investigated. As the degree of plastic …

Effects of temperature and strain rate on plastic deformation mechanisms of nanocrystalline high-entropy alloys

L Li, H Chen, Q Fang, J Li, F Liu, Y Liu, PK Liaw - Intermetallics, 2020 - Elsevier
The nanocrystalline high-entropy alloys (HEAs) can be regarded as ideal substitution
materials for use in aero engines due to their outstanding mechanical properties. Owing to …