High entropy alloys: A focused review of mechanical properties and deformation mechanisms

EP George, WA Curtin, CC Tasan - Acta Materialia, 2020 - Elsevier
The high-entropy alloy (HEA) concept was based on the idea that high mixing entropy can
promote formation of stable single-phase microstructures. During the past 15 years, various …

High‐entropy alloys: potential candidates for high‐temperature applications–an overview

S Praveen, HS Kim - Advanced Engineering Materials, 2018 - Wiley Online Library
Multi‐principal elemental alloys, commonly referred to as high‐entropy alloys (HEAs), are a
new class of emerging advanced materials with novel alloy design concept. Unlike the …

Strengthening in multi-principal element alloys with local-chemical-order roughened dislocation pathways

QJ Li, H Sheng, E Ma - Nature communications, 2019 - nature.com
High-entropy and medium-entropy alloys are presumed to have a configurational entropy as
high as that of an ideally mixed solid solution (SS) of multiple elements in near-equal …

Unusual dislocation behavior in high-entropy alloys

E Ma - Scripta Materialia, 2020 - Elsevier
This Viewpoint article articulates ten unusual features associated with dislocations and their
slip processes in high-entropy alloys (HEAs). Attention will be directed towards the …

Simultaneous enhancement of strength and ductility in a NiCoCrFe high-entropy alloy upon dynamic tension: Micromechanism and constitutive modeling

TW Zhang, SG Ma, D Zhao, YC Wu, Y Zhang… - International Journal of …, 2020 - Elsevier
The deformation responses of NiCoCrFe high-entropy alloy (HEA) under quasi-static (1×
10− 4-1× 10− 1/s) and dynamic (1,000–6,000/s) tension were investigated. A good …

[HTML][HTML] High entropy alloys–Tunability of deformation mechanisms through integration of compositional and microstructural domains

RS Mishra, RS Haridas, P Agrawal - Materials Science and Engineering: A, 2021 - Elsevier
The paradigm shift of alloying approach that led to high entropy alloys (HEAs) is now well
established. Although the initial years were dominated by equiatomic approach, recent …

Strain rate effects of dynamic compressive deformation on mechanical properties and microstructure of CoCrFeMnNi high-entropy alloy

JM Park, J Moon, JW Bae, MJ Jang, J Park… - Materials Science and …, 2018 - Elsevier
In this work, the effects of strain rate on mechanical deformation and microstructural
evolution of CoCrFeMnNi high-entropy alloy (HEA) under quasi-static and dynamic …

Plastic deformation of single crystals of the equiatomic Cr− Mn− Fe− Co− Ni high-entropy alloy in tension and compression from 10 K to 1273 K

M Kawamura, M Asakura, NL Okamoto, K Kishida… - Acta Materialia, 2021 - Elsevier
The plastic deformation behavior of single crystals of the quinary, equiatomic Cr− Mn− Fe−
Co− Ni high-entropy alloy (HEA) with the face-centered cubic structure has been …

Toward excellent tensile properties of nitrogen-doped CoCrFeMnNi high-entropy alloy at room and cryogenic temperatures

SH Shim, J Moon, H Pouraliakbar, BJ Lee… - Journal of Alloys and …, 2022 - Elsevier
Here, the effect of nitrogen addition on the microstructural evolution and mechanical
properties of the alloys at 298 K and 77 K was investigated. In the CoCrFeMnNi alloys with …

[HTML][HTML] Strain-rate effects and dynamic behavior of high entropy alloys

A Huang, SJ Fensin, MA Meyers - Journal of Materials Research and …, 2023 - Elsevier
The novel class of multicomponent alloys, also known as high-entropy alloys (HEAs)
exhibits excellent properties under low strain-rate conditions. These are especially revealed …