Heterogeneous lattice strain strengthening in severely distorted crystalline solids

J Li, Y Chen, Q He, X Xu, H Wang… - Proceedings of the …, 2022 - National Acad Sciences
Multi–principal element alloys (MPEAs) exhibit outstanding mechanical properties because
the core effect of severe atomic lattice distortion is distinctly different from that of traditional …

Hierarchical multiscale crystal plasticity framework for plasticity and strain hardening of multi-principal element alloys

Q Fang, W Lu, Y Chen, H Feng, PK Liaw, J Li - Journal of the Mechanics …, 2022 - Elsevier
The multi-principal element alloys (MPEAs) exhibit the unprecedented combinations of the
excellent mechanical properties, especially high strength and good ductility. However, the …

Correlating dislocation mobility with local lattice distortion in refractory multi-principal element alloys

B Chen, S Li, J Ding, X Ding, J Sun, E Ma - Scripta Materialia, 2023 - Elsevier
Multi-principal element alloys (MPEAs) exhibit different degrees of intrinsic lattice distortion,
which varies with constituent species. Using atomistic simulations, here we found the …

Maximum strength and dislocation patterning in multi–principal element alloys

P Cao - Science advances, 2022 - science.org
Multi–principal element alloys (MPEAs) containing three or more components in high
concentrations render a tunable chemical short-range order (SRO). Leveraging large-scale …

Lattice strain framework for plastic deformation in complex concentrated alloys including high entropy alloys

RS Mishra, N Kumar… - Materials Science and …, 2015 - journals.sagepub.com
Alloys involving multiple solutes where the concentrations are such that it becomes difficult
to identify a “solvent”, such as the so called “high entropy alloys”, have the potential for …

Bimodality of incipient plastic strength in face-centered cubic high-entropy alloys

Y Zhao, JM Park, J Jang, U Ramamurty - Acta Materialia, 2021 - Elsevier
Spherical tip nanoindentation experiments on two typical face-centered cubic high-entropy
alloys (HEAs), CoCrFeNi and CoCrFeMnNi in as-solutionized and aged conditions were …

Ultrastrong medium‐entropy single‐phase alloys designed via severe lattice distortion

SS Sohn, A Kwiatkowski da Silva, Y Ikeda… - Advanced …, 2019 - Wiley Online Library
Severe lattice distortion is a core effect in the design of multiprincipal element alloys with the
aim to enhance yield strength, a key indicator in structural engineering. Yet, the yield …

Aged metastable high-entropy alloys with heterogeneous lamella structure for superior strength-ductility synergy

C Zhang, C Zhu, P Cao, X Wang, F Ye, K Kaufmann… - Acta Materialia, 2020 - Elsevier
High-entropy alloys containing multi-principal-element systems significantly expand the
potential alloy design space, and offer the possibility of overcoming the strength-ductility …

Heterogenous columnar-grained high-entropy alloys produce exceptional resistance to intermediate-temperature intergranular embrittlement

BX Cao, HJ Kong, L Fan, JH Luan, ZB Jiao, JJ Kai… - Scripta Materialia, 2021 - Elsevier
High-entropy alloys (HEAs) strengthened by coherent nanoparticles show great potentials
for elevated-temperature structural applications, which however, generally suffer from a …

Inherent and multiple strain hardening imparting synergistic ultrahigh strength and ductility in a low stacking faulted heterogeneous high-entropy alloy

Z An, S Mao, Y Liu, L Yang, A Vayyala, X Wei, C Liu… - Acta Materialia, 2023 - Elsevier
Alloys with high yield strength and ductility are attractive for application because of their
potential to offer mass reduction, energy savings, and enhanced structural reliability …