[HTML][HTML] Bio-high entropy alloys: Progress, challenges, and opportunities

J Feng, Y Tang, J Liu, P Zhang, C Liu… - … in Bioengineering and …, 2022 - frontiersin.org
With the continuous progress and development in biomedicine, metallic biomedical
materials have attracted significant attention from researchers. Due to the low compatibility …

The hierarchical energy landscape of screw dislocation motion in refractory high-entropy alloys

X Wang, F Maresca, P Cao - Acta Materialia, 2022 - Elsevier
High-entropy alloys (HEAs) with concentrated solid solutions are conceived to possess a
rugged atomic and energy landscape in which dislocation motion necessarily proceeds to …

Characteristic strengthening mechanisms in body-centered cubic refractory high/medium entropy alloys

Q He, S Yoshida, N Tsuji - Scripta Materialia, 2023 - Elsevier
The present work reports characteristic strengthening mechanisms of HfNbTaTi, HfNbTiZr,
HfNbTi, HfTaTi, and NbTiZr equi-atomic refractory medium entropy alloys (RMEAs). The …

Chemical short range order strengthening in BCC complex concentrated alloys

E Antillon, C Woodward, SI Rao, B Akdim - Acta Materialia, 2021 - Elsevier
Atomistic methods are used to anneal two body-centered cubic (BCC) chemically complex
alloys (CCAs) in order to assess the effect of chemical short-range order on alloy strength …

First-principles approaches and models for crystal defect energetics in metallic alloys

YJ Hu - Computational Materials Science, 2023 - Elsevier
Many physical and mechanical properties of metallic alloys are sensitive to the formation
and migration of crystal defects such as vacancies, dislocations, stacking faults, and grain …

[HTML][HTML] Unstable stacking fault energy and peierls stress for evaluating slip system competition in body-centered cubic metals

XC Zhang, S Cao, LJ Zhang, R Yang, QM Hu - Journal of Materials …, 2023 - Elsevier
Determining the competition between the {110}⟨ 111⟩,{112}⟨ 111⟩ and {123}⟨ 111⟩ slip
systems in body-centered cubic (BCC) metals is important to understand their mechanical …

[HTML][HTML] Line-length-dependent dislocation glide in refractory multi-principal element alloys

S Xu, WR Jian, Y Su, IJ Beyerlein - Applied Physics Letters, 2022 - pubs.aip.org
Plastic deformation of refractory multi-principal element alloys (RMPEAs) is known to differ
greatly from those of refractory pure metals. The fundamental cause is the different …

A simpler technique for determining substitutional solute-screw dislocation interaction energies in BCC structures useful for estimating solid solution screw …

SI Rao, B Akdim - Acta Materialia, 2024 - Elsevier
A new simpler method of calculating solute-screw dislocation interaction energies in BCC
structures using a combination of row potential formalism and non-linear elasticity …

Orientation dependent plasticity of the refractory multi-principal element alloy MoNbTi investigated via micropillar compression

GH Balbus, SI Rao, ON Senkov, EJ Payton - Acta Materialia, 2024 - Elsevier
Refractory multi-principal element alloys (RMPEAs) are promising candidate materials for
use in high temperature structural applications and other extreme environments. Recent …

[HTML][HTML] Interaction of C, N and O interstitial solute atoms with screw dislocations in HfNbTaTiZr high entropy alloy

T Leveau, L Ventelon, E Clouet - Acta Materialia, 2024 - Elsevier
Using density functional theory (DFT), we characterize the interaction of screw dislocations
with interstitial impurities, in particular oxygen, nitrogen and carbon, in the HfNbTaTiZr alloy …