Si-addition contributes to overcoming the strength-ductility trade-off in high-entropy alloys

D Wei, W Gong, T Tsuru, I Lobzenko, X Li… - International Journal of …, 2022 - Elsevier
Face-centered cubic single-phase high-entropy alloys (HEAs) containing multi-principal
transition metals have attracted significant attention, exhibiting an unprecedented …

Metalloid substitution elevates simultaneously the strength and ductility of face-centered-cubic high-entropy alloys

D Wei, L Wang, Y Zhang, W Gong, T Tsuru, I Lobzenko… - Acta Materialia, 2022 - Elsevier
Recently-developed high-entropy alloys (HEAs) containing multiple principal metallic
elements have extended the compositional space of solid solutions and the range of their …

Mechanical behaviors of equiatomic and near-equiatomic face-centered-cubic phase high-entropy alloys probed using in situ neutron diffraction

D Wei, W Gong, T Tsuru, T Kawasaki, S Harjo… - International Journal of …, 2022 - Elsevier
Abstract The equiatomic CoCrFeMnNi Cantor alloy, a face-centered-cubic (FCC) single-
phase high-entropy alloy (HEA), has attracted considerable attention owing to its high …

Regulation of strength and ductility of single-phase twinning-induced plasticity high-entropy alloys

D Wei, W Gong, T Kawasaki, S Harjo, H Kato - Scripta Materialia, 2022 - Elsevier
Near-equiatomic single-phase twining-induced plasticity (TWIP) high-entropy alloys (HEAs)
exhibit a good combination of strength and ductility, but their modest yield strength requires …

The convolutional multiple whole profile (CMWP) fitting method, a global optimization procedure for microstructure determination

G Ribárik, B Jóni, T Ungár - Crystals, 2020 - mdpi.com
The analysis of line broadening in X-ray and neutron diffraction patterns using profile
functions constructed on the basis of well-established physical principles and TEM …

Strengthening of high-entropy alloys via modulation of cryo-pre-straining-induced defects

D Wei, W Gong, L Wang, B Tang, T Kawasaki… - Journal of Materials …, 2022 - Elsevier
Owing to their attractive structure and mechanical properties, high-entropy alloys (HEAs)
and medium-entropy alloys (MEAs) have attracted considerable research interest. The …

[HTML][HTML] Strain-hardening resilience via the cooperation of geometrically necessary dislocations and deformation twins in a strong and ductile lightweight high-entropy …

YH Sun, SW Chen, ZH Lai, SL Lu, YT Lin, JF Tu… - Materials & Design, 2024 - Elsevier
In the net-zero era, the burgeoning demands within engineering applications require
materials that are not only lighter and stronger but also ductile. A robust strain hardening …

Evolution of dislocation density in bainitic steel: Modeling and experiments

SH He, BB He, KY Zhu, MX Huang - Acta Materialia, 2018 - Elsevier
Bainitic steels with intensive lath boundaries demonstrate an excellent combination of
strength and toughness. The bainite lath has an inhomogeneous distribution of dislocations …

[HTML][HTML] Quantification of hydrogen trapping in multiphase steels: Part I–Point traps in martensite

A Turk, GR Joshi, M Gintalas, M Callisti… - Acta Materialia, 2020 - Elsevier
We quantified systematically the H trap density in martensite resulting from the presence of
dislocations, grain boundaries and retained austenite through a combination of detailed …

Local chemical fluctuation mediated ultra-sluggish martensitic transformation in high-entropy intermetallics

Y Wu, F Zhang, F Li, Y Yang, J Zhu, HH Wu… - Materials …, 2022 - pubs.rsc.org
Superelasticity associated with martensitic transformation has found a broad range of
engineering applications, such as in low-temperature devices in the aerospace industry …