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 …

Multiscale plastic deformation in additively manufactured FeCoCrNiMox high-entropy alloys to achieve strength–ductility synergy at elevated temperatures

D Lin, J Hu, R Wu, Y Liu, X Li, MJ SaGong… - International Journal of …, 2024 - Elsevier
The application of structural metals in extreme environments necessitates materials with
superior mechanical properties. Mo-doped FeCoCrNi high-entropy alloys (HEAs) have …

Effect of temperature and strain rate on quasi-static and dynamic compressive behavior of forged CrMnFeCoNi high entropy alloy

J Sun, W Zhao, P Yan, X Xia, L Jiao, X Wang - Materials Science and …, 2023 - Elsevier
The equiatomic CrMnFeCoNi high entropy alloy (HEA) has attracted much attention due to
the superior ductility. However, as a face-centered cubic (FCC) single-phase solid solution …

High temperature tensile properties of as-cast and forged CrMnFeCoNi high entropy alloy

J Sun, W Zhao, P Yan, S Li, Z Dai, L Jiao, T Qiu… - Materials Science and …, 2022 - Elsevier
High entropy alloys (HEAs) are a new kind of basic materials with excellent properties,
which can be used in extreme service environment. In this paper, high temperature tensile …

Microstructure, wear performance, and mechanical properties of spark plasma-sintered AlCoCrFeNi high-entropy alloy after heat treatment

A Faraji, M Farvizi, T Ebadzadeh, HS Kim - Intermetallics, 2022 - Elsevier
Powder metallurgy methods such as spark plasma sintering (SPS) are conventionally used
for the fabrication of high entropy alloys (HEAs). However, the phase constituents of SPS …

Formation of dendrites and strengthening mechanism of dual-phase Ni36Co30Fe11Cr11Al6Ti6 HEA by directional solidification

X Yang, R Chen, T Liu, X Gao, H Fang, G Qin… - Journal of Alloys and …, 2023 - Elsevier
In order to reveal the effect of solidification rate on microstructure and improve room and
high temperature tensile properties, Ni 36 Co 30 Fe 11 Cr 11 Al 6 Ti 6 high entropy alloys …

Extraordinary creep resistance in a non-equiatomic high-entropy alloy from the optimum solid-solution strengthening and stress-assisted precipitation process

S Chen, J Qiao, H Diao, T Yang, J Poplawsky, W Li… - Acta Materialia, 2023 - Elsevier
Improving creep resistance has commonly been achieved by the optimization of alloy design
that results into strong solid-solution strengthening and/or coherent precipitates for …

Balanced mechanical properties of Al0. 3CoCrFeNiTix high-entropy alloys by tailoring Ti content and heat treatment

Y Lu, K Zhang, B Zhao, X Dong, F Sun, B Zhou… - Materials Science and …, 2023 - Elsevier
Abstract Al 0.3 CoCrFeNiTi x (x= 0.025, 0.075, 0.15) high-entropy alloys (HEAs) were
designed to investigate the impacts of Ti addition and the aging temperature (700–900° C) …

Effect of serrated grain boundary on tensile and creep properties of a precipitation strengthened high entropy alloy

JL Lee, PT Wang, KC Lo, PK Shen… - … and Technology of …, 2023 - Taylor & Francis
In this study, tensile and creep deformation of a high-entropy alloy processed by selective
laser melting (SLM) has been investigated; hot ductility drop was identified at first, and the …

Microstructure evolution and strengthening mechanism of CoCrFeMnNi HEA/Zr-3 brazed joints reinforced by fine-grained BCC HEA and HCP Zr

X Song, N Jiang, H Bian, HS Kim, D Lin, W Long… - Journal of Materials …, 2024 - Elsevier
In the pursuit of manufacturing intricate components for the nuclear industry, we developed a
novel Zr63. 2Cu36. 8 (wt.%) alloy via vacuum melting for brazing applications involving …